4397994 has 12 divisors (see below), whose sum is σ = 9529026. Its totient is φ = 1465992.

The previous prime is 4397983. The next prime is 4397999. The reversal of 4397994 is 4997934.

It can be written as a sum of positive squares in only one way, i.e., 3560769 + 837225 = 1887^2 + 915^2 .

It is not an unprimeable number, because it can be changed into a prime (4397999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122149 + ... + 122184.

Almost surely, 2^4397994 is an apocalyptic number.

4397994 is an abundant number, since it is smaller than the sum of its proper divisors (5131032).

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

4397994 is a wasteful number, since it uses less digits than its factorization.

4397994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244341 (or 244338 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 4397994 is about 2097.1394803398. The cubic root of 4397994 is about 163.8393479337.

The spelling of 4397994 in words is "four million, three hundred ninety-seven thousand, nine hundred ninety-four".