2397972 has 12 divisors (see below), whose sum is σ = 5595296. Its totient is φ = 799320.

The previous prime is 2397961. The next prime is 2397991. The reversal of 2397972 is 2797932.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2397972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99904 + ... + 99927.

2^2397972 is an apocalyptic number.

It is an amenable number.

2397972 is an abundant number, since it is smaller than the sum of its proper divisors (3197324).

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

2397972 is a wasteful number, since it uses less digits than its factorization.

2397972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199838 (or 199836 counting only the distinct ones).

The product of its digits is 47628, while the sum is 39.

The square root of 2397972 is about 1548.5386659687. The cubic root of 2397972 is about 133.8488679999.

The spelling of 2397972 in words is "two million, three hundred ninety-seven thousand, nine hundred seventy-two".