2397946 has 4 divisors (see below), whose sum is σ = 3596922. Its totient is φ = 1198972.

The previous prime is 2397931. The next prime is 2397947. The reversal of 2397946 is 6497932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 192721 = 1485^2 + 439^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁹ + 3⁴ + 9² + 7⁷ + 9² + 4¹⁰ + 6⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 2397899 and 2397908.

It is not an unprimeable number, because it can be changed into a prime (2397947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599485 + ... + 599488.

2^2397946 is an apocalyptic number.

2397946 is a deficient number, since it is larger than the sum of its proper divisors (1198976).

2397946 is a wasteful number, since it uses less digits than its factorization.

2397946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198975.

The product of its digits is 81648, while the sum is 40.

The square root of 2397946 is about 1548.5302709343. The cubic root of 2397946 is about 133.8483842462.

It can be divided in two parts, 23979 and 46, that added together give a square (24025 = 155²).

The spelling of 2397946 in words is "two million, three hundred ninety-seven thousand, nine hundred forty-six".