997420612 has 24 divisors (see below), whose sum is σ = 1795610880. Its totient is φ = 484491840.

The previous prime is 997420609. The next prime is 997420643. The reversal of 997420612 is 216024799.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26473 + ... + 51919.

It is an arithmetic number, because the mean of its divisors is an integer number (74817120).

Almost surely, 2^997420612 is an apocalyptic number.

It is an amenable number.

997420612 is a deficient number, since it is larger than the sum of its proper divisors (798190268).

997420612 is a wasteful number, since it uses less digits than its factorization.

997420612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25731 (or 25729 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 997420612 is about 31581.9665632145. The cubic root of 997420612 is about 999.1394636897.

The spelling of 997420612 in words is "nine hundred ninety-seven million, four hundred twenty thousand, six hundred twelve".