997023732 has 24 divisors (see below), whose sum is σ = 2383131072. Its totient is φ = 324235200.

The previous prime is 997023721. The next prime is 997023733. The reversal of 997023732 is 237320799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997023733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012744 + ... + 1013727.

It is an arithmetic number, because the mean of its divisors is an integer number (99297128).

Almost surely, 2^997023732 is an apocalyptic number.

It is an amenable number.

997023732 is an abundant number, since it is smaller than the sum of its proper divisors (1386107340).

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

997023732 is a wasteful number, since it uses less digits than its factorization.

997023732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026519 (or 2026517 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 997023732 is about 31575.6826054481. The cubic root of 997023732 is about 999.0069247948.

The spelling of 997023732 in words is "nine hundred ninety-seven million, twenty-three thousand, seven hundred thirty-two".