97118772 has 48 divisors (see below), whose sum is σ = 230513472. Its totient is φ = 31820800.

The previous prime is 97118761. The next prime is 97118783. The reversal of 97118772 is 27781179.

It is an interprime number because it is at equal distance from previous prime (97118761) and next prime (97118783).

Its product of digits (49392) is a multiple of the sum of its prime divisors (686).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274948 + ... + 275300.

It is an arithmetic number, because the mean of its divisors is an integer number (4802364).

Almost surely, 2^97118772 is an apocalyptic number.

It is an amenable number.

97118772 is an abundant number, since it is smaller than the sum of its proper divisors (133394700).

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

97118772 is a wasteful number, since it uses less digits than its factorization.

97118772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 686 counting only the distinct ones).

The product of its digits is 49392, while the sum is 42.

The square root of 97118772 is about 9854.8856918789. The cubic root of 97118772 is about 459.6575460003.

The spelling of 97118772 in words is "ninety-seven million, one hundred eighteen thousand, seven hundred seventy-two".