97013657 has 4 divisors (see below), whose sum is σ = 104476260. Its totient is φ = 89551056.

The previous prime is 97013629. The next prime is 97013669. The reversal of 97013657 is 75631079.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 87254281 = 3124^2 + 9341^2 .

It is a cyclic number.

It is not a de Polignac number, because 97013657 - 2⁸ = 97013401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97013657.

It is not an unprimeable number, because it can be changed into a prime (97013617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3731282 + ... + 3731307.

It is an arithmetic number, because the mean of its divisors is an integer number (26119065).

Almost surely, 2^97013657 is an apocalyptic number.

It is an amenable number.

97013657 is a deficient number, since it is larger than the sum of its proper divisors (7462603).

97013657 is a wasteful number, since it uses less digits than its factorization.

97013657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462602.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 97013657 is about 9849.5511065226. The cubic root of 97013657 is about 459.4916517243.

The spelling of 97013657 in words is "ninety-seven million, thirteen thousand, six hundred fifty-seven".