997934598 has 24 divisors (see below), whose sum is σ = 2170614888. Its totient is φ = 331348992.

The previous prime is 997934593. The next prime is 997934617. The reversal of 997934598 is 895439799.

It is a happy number.

997934598 is a `hidden beast` number, since 9 + 9 + 7 + 9 + 34 + 598 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997934591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103236 + ... + 112487.

It is an arithmetic number, because the mean of its divisors is an integer number (90442287).

Almost surely, 2^997934598 is an apocalyptic number.

997934598 is an abundant number, since it is smaller than the sum of its proper divisors (1172680290).

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

997934598 is a wasteful number, since it uses less digits than its factorization.

997934598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215988 (or 215985 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The square root of 997934598 is about 31590.1028488354. The cubic root of 997934598 is about 999.3110581348.

The spelling of 997934598 in words is "nine hundred ninety-seven million, nine hundred thirty-four thousand, five hundred ninety-eight".