97237513 has 4 divisors (see below), whose sum is σ = 97305088. Its totient is φ = 97169940.

The previous prime is 97237499. The next prime is 97237523. The reversal of 97237513 is 31573279.

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 a de Polignac number, because none of the positive numbers 2^k-97237513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97237523) 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, 31581 + ... + 34522.

It is an arithmetic number, because the mean of its divisors is an integer number (24326272).

Almost surely, 2^97237513 is an apocalyptic number.

It is an amenable number.

97237513 is a deficient number, since it is larger than the sum of its proper divisors (67575).

97237513 is a wasteful number, since it uses less digits than its factorization.

97237513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67574.

The product of its digits is 39690, while the sum is 37.

The square root of 97237513 is about 9860.9083253015. The cubic root of 97237513 is about 459.8448011407.

The spelling of 97237513 in words is "ninety-seven million, two hundred thirty-seven thousand, five hundred thirteen".