97567920 has 60 divisors (see below), whose sum is σ = 327668016. Its totient is φ = 26017920.

The previous prime is 97567901. The next prime is 97567933. The reversal of 97567920 is 2976579.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67036 + ... + 68475.

Almost surely, 2^97567920 is an apocalyptic number.

97567920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97567920 is an abundant number, since it is smaller than the sum of its proper divisors (230100096).

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

97567920 is a wasteful number, since it uses less digits than its factorization.

97567920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135530 (or 135521 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 97567920 is about 9877.6474932040. The cubic root of 97567920 is about 460.3650536339.

The spelling of 97567920 in words is "ninety-seven million, five hundred sixty-seven thousand, nine hundred twenty".