97180657 has 4 divisors (see below), whose sum is σ = 111063616. Its totient is φ = 83297700.

The previous prime is 97180651. The next prime is 97180661. The reversal of 97180657 is 75608179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97180657 - 2¹⁹ = 96656369 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (97180651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6941469 + ... + 6941482.

It is an arithmetic number, because the mean of its divisors is an integer number (27765904).

Almost surely, 2^97180657 is an apocalyptic number.

It is an amenable number.

97180657 is a deficient number, since it is larger than the sum of its proper divisors (13882959).

97180657 is a wasteful number, since it uses less digits than its factorization.

97180657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13882958.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 97180657 is about 9858.0250050403. The cubic root of 97180657 is about 459.7551579820.

The spelling of 97180657 in words is "ninety-seven million, one hundred eighty thousand, six hundred fifty-seven".