997308132 has 48 divisors (see below), whose sum is σ = 2367395520. Its totient is φ = 326696832.

The previous prime is 997308061. The next prime is 997308133. The reversal of 997308132 is 231803799.

It is not an unprimeable number, because it can be changed into a prime (997308133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408018 + ... + 410454.

It is an arithmetic number, because the mean of its divisors is an integer number (49320740).

Almost surely, 2^997308132 is an apocalyptic number.

It is an amenable number.

997308132 is an abundant number, since it is smaller than the sum of its proper divisors (1370087388).

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

997308132 is a wasteful number, since it uses less digits than its factorization.

997308132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 997308132 is about 31580.1857499287. The cubic root of 997308132 is about 999.1019043323.

The spelling of 997308132 in words is "nine hundred ninety-seven million, three hundred eight thousand, one hundred thirty-two".