97257492 has 18 divisors (see below), whose sum is σ = 245845418. Its totient is φ = 32419152.

The previous prime is 97257473. The next prime is 97257499. The reversal of 97257492 is 29475279.

97257492 is a `hidden beast` number, since 9 + 72 + 574 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 93431556 + 3825936 = 9666^2 + 1956^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97257499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1350763 + ... + 1350834.

Almost surely, 2^97257492 is an apocalyptic number.

It is an amenable number.

97257492 is an abundant number, since it is smaller than the sum of its proper divisors (148587926).

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

97257492 is a wasteful number, since it uses less digits than its factorization.

97257492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701607 (or 2701602 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 97257492 is about 9861.9213138212. The cubic root of 97257492 is about 459.8762931368.

The spelling of 97257492 in words is "ninety-seven million, two hundred fifty-seven thousand, four hundred ninety-two".