97157307 has 16 divisors (see below), whose sum is σ = 140249088. Its totient is φ = 59471520.

The previous prime is 97157299. The next prime is 97157311. The reversal of 97157307 is 70375179.

It is a happy number.

It is not a de Polignac number, because 97157307 - 2³ = 97157299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (97157377) 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 in 15 ways as a sum of consecutive naturals, for example, 928 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (8765568).

Almost surely, 2^97157307 is an apocalyptic number.

97157307 is a deficient number, since it is larger than the sum of its proper divisors (43091781).

97157307 is a wasteful number, since it uses less digits than its factorization.

97157307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250.

The product of its (nonzero) digits is 46305, while the sum is 39.

The square root of 97157307 is about 9856.8406195900. The cubic root of 97157307 is about 459.7183326055.

The spelling of 97157307 in words is "ninety-seven million, one hundred fifty-seven thousand, three hundred seven".