997145324 has 12 divisors (see below), whose sum is σ = 1994290704. Its totient is φ = 427347984.

The previous prime is 997145323. The next prime is 997145363. The reversal of 997145324 is 423541799.

997145324 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (997145323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17806139 + ... + 17806194.

It is an arithmetic number, because the mean of its divisors is an integer number (166190892).

Almost surely, 2^997145324 is an apocalyptic number.

It is an amenable number.

997145324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

997145324 is a wasteful number, since it uses less digits than its factorization.

997145324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35612344 (or 35612342 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 997145324 is about 31577.6079524716. The cubic root of 997145324 is about 999.0475344307.

The spelling of 997145324 in words is "nine hundred ninety-seven million, one hundred forty-five thousand, three hundred twenty-four".