97897632 has 48 divisors (see below), whose sum is σ = 293694912. Its totient is φ = 27970560.

The previous prime is 97897621. The next prime is 97897643. The reversal of 97897632 is 23679879.

It is an interprime number because it is at equal distance from previous prime (97897621) and next prime (97897643).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72169 + ... + 73512.

It is an arithmetic number, because the mean of its divisors is an integer number (6118644).

Almost surely, 2^97897632 is an apocalyptic number.

It is an amenable number.

97897632 is an abundant number, since it is smaller than the sum of its proper divisors (195797280).

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

97897632 is a wasteful number, since it uses less digits than its factorization.

97897632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145701 (or 145693 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 97897632 is about 9894.3232209181. The cubic root of 97897632 is about 460.8830422772.

The spelling of 97897632 in words is "ninety-seven million, eight hundred ninety-seven thousand, six hundred thirty-two".