997168488 has 32 divisors (see below), whose sum is σ = 2624128800. Its totient is φ = 314895168.

The previous prime is 997168457. The next prime is 997168489. The reversal of 997168488 is 884861799.

It is a super-2 number, since 2×997168488² = 1988689986920412288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (997168489) 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, 1092931 + ... + 1093842.

It is an arithmetic number, because the mean of its divisors is an integer number (82004025).

Almost surely, 2^997168488 is an apocalyptic number.

It is an amenable number.

997168488 is an abundant number, since it is smaller than the sum of its proper divisors (1626960312).

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

997168488 is a wasteful number, since it uses less digits than its factorization.

997168488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186801 (or 2186797 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 60.

The square root of 997168488 is about 31577.9747292318. The cubic root of 997168488 is about 999.0552704338.

The spelling of 997168488 in words is "nine hundred ninety-seven million, one hundred sixty-eight thousand, four hundred eighty-eight".