97924157 has 4 divisors (see below), whose sum is σ = 103078080. Its totient is φ = 92770236.

The previous prime is 97924139. The next prime is 97924159. The reversal of 97924157 is 75142979.

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 not a de Polignac number, because 97924157 - 2¹⁴ = 97907773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97924159) 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, 2576933 + ... + 2576970.

It is an arithmetic number, because the mean of its divisors is an integer number (25769520).

Almost surely, 2^97924157 is an apocalyptic number.

It is an amenable number.

97924157 is a deficient number, since it is larger than the sum of its proper divisors (5153923).

97924157 is a wasteful number, since it uses less digits than its factorization.

97924157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153922.

The product of its digits is 158760, while the sum is 44.

The square root of 97924157 is about 9895.6635452101. The cubic root of 97924157 is about 460.9246633683.

The spelling of 97924157 in words is "ninety-seven million, nine hundred twenty-four thousand, one hundred fifty-seven".