97907072 has 16 divisors (see below), whose sum is σ = 195049500. Its totient is φ = 48953472.

The previous prime is 97907071. The next prime is 97907081. The reversal of 97907072 is 27070979.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×97907072² = 19171589495226368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97907071) by changing a digit.

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 as a sum of consecutive naturals, namely, 382322 + ... + 382577.

Almost surely, 2^97907072 is an apocalyptic number.

It is an amenable number.

97907072 is a deficient number, since it is larger than the sum of its proper divisors (97142428).

97907072 is an equidigital number, since it uses as much as digits as its factorization.

97907072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764913 (or 764901 counting only the distinct ones).

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 97907072 is about 9894.8002506367. The cubic root of 97907072 is about 460.8978556968.

The spelling of 97907072 in words is "ninety-seven million, nine hundred seven thousand, seventy-two".