997084908 has 72 divisors (see below), whose sum is σ = 2554825728. Its totient is φ = 327850848.

The previous prime is 997084883. The next prime is 997084909. The reversal of 997084908 is 809480799.

It is a super-2 number, since 2×997084908² = 1988356627522736928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (997084909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642341 + ... + 1642947.

Almost surely, 2^997084908 is an apocalyptic number.

It is an amenable number.

997084908 is an abundant number, since it is smaller than the sum of its proper divisors (1557740820).

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

997084908 is a wasteful number, since it uses less digits than its factorization.

997084908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 997084908 is about 31576.6513107391. The cubic root of 997084908 is about 999.0273569389.

The spelling of 997084908 in words is "nine hundred ninety-seven million, eighty-four thousand, nine hundred eight".