97505939 has 4 divisors (see below), whose sum is σ = 97858224. Its totient is φ = 97153656.

The previous prime is 97505927. The next prime is 97505951. The reversal of 97505939 is 93950579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93950579 = 487 ⋅192917.

It is an interprime number because it is at equal distance from previous prime (97505927) and next prime (97505951).

It is a cyclic number.

It is not a de Polignac number, because 97505939 - 2²⁴ = 80728723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97505893 and 97505902.

It is not an unprimeable number, because it can be changed into a prime (97505539) 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, 175727 + ... + 176280.

It is an arithmetic number, because the mean of its divisors is an integer number (24464556).

Almost surely, 2^97505939 is an apocalyptic number.

97505939 is a deficient number, since it is larger than the sum of its proper divisors (352285).

97505939 is a wasteful number, since it uses less digits than its factorization.

97505939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352284.

The product of its (nonzero) digits is 382725, while the sum is 47.

The square root of 97505939 is about 9874.5095574413. The cubic root of 97505939 is about 460.2675491445.

The spelling of 97505939 in words is "ninety-seven million, five hundred five thousand, nine hundred thirty-nine".