4397946 has 32 divisors (see below), whose sum is σ = 10262400. Its totient is φ = 1255968.

The previous prime is 4397941. The next prime is 4397957. The reversal of 4397946 is 6497934.

4397946 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a d-powerful number, because it can be written as 4⁸ + 3⁹ + 9 + 7⁶ + 9³ + 4¹¹ + 6² .

It is a junction number, because it is equal to n+sod(n) for n = 4397898 and 4397907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4397941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990 + ... + 3126.

It is an arithmetic number, because the mean of its divisors is an integer number (320700).

Almost surely, 2^4397946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4397946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5131200).

4397946 is an abundant number, since it is smaller than the sum of its proper divisors (5864454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4397946 is a wasteful number, since it uses less digits than its factorization.

4397946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2149 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 4397946 is about 2097.1280361485. The cubic root of 4397946 is about 163.8387518804.

It can be divided in two parts, 439 and 7946, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 4397946 in words is "four million, three hundred ninety-seven thousand, nine hundred forty-six".