997697468 has 24 divisors (see below), whose sum is σ = 1762941600. Its totient is φ = 494020800.

The previous prime is 997697423. The next prime is 997697483. The reversal of 997697468 is 864796799.

It is a super-2 number, since 2×997697468² = 1990800475307222048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208430 + ... + 213162.

It is an arithmetic number, because the mean of its divisors is an integer number (73455900).

Almost surely, 2^997697468 is an apocalyptic number.

It is an amenable number.

997697468 is a deficient number, since it is larger than the sum of its proper divisors (765244132).

997697468 is a wasteful number, since it uses less digits than its factorization.

997697468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237 (or 5235 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 65.

The square root of 997697468 is about 31586.3493933693. The cubic root of 997697468 is about 999.2318995060.

The spelling of 997697468 in words is "nine hundred ninety-seven million, six hundred ninety-seven thousand, four hundred sixty-eight".