997456312 has 8 divisors (see below), whose sum is σ = 1870230600. Its totient is φ = 498728152.

The previous prime is 997456303. The next prime is 997456331. The reversal of 997456312 is 213654799.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62341012 + ... + 62341027.

It is an arithmetic number, because the mean of its divisors is an integer number (233778825).

Almost surely, 2^997456312 is an apocalyptic number.

It is an amenable number.

997456312 is a deficient number, since it is larger than the sum of its proper divisors (872774288).

997456312 is a wasteful number, since it uses less digits than its factorization.

997456312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124682045 (or 124682041 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 997456312 is about 31582.5317541200. The cubic root of 997456312 is about 999.1513840547.

The spelling of 997456312 in words is "nine hundred ninety-seven million, four hundred fifty-six thousand, three hundred twelve".