97264921 has 4 divisors (see below), whose sum is σ = 104746852. Its totient is φ = 89782992.

The previous prime is 97264913. The next prime is 97264943. The reversal of 97264921 is 12946279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12946279 = 241 ⋅53719.

It can be written as a sum of positive squares in 2 ways, for example, as 13286025 + 83978896 = 3645^2 + 9164^2 .

It is not a de Polignac number, because 97264921 - 2³ = 97264913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97264421) 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, 3740946 + ... + 3740971.

It is an arithmetic number, because the mean of its divisors is an integer number (26186713).

Almost surely, 2^97264921 is an apocalyptic number.

It is an amenable number.

97264921 is a deficient number, since it is larger than the sum of its proper divisors (7481931).

97264921 is a wasteful number, since it uses less digits than its factorization.

97264921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481930.

The product of its digits is 54432, while the sum is 40.

The square root of 97264921 is about 9862.2979573728. The cubic root of 97264921 is about 459.8880020342. Note that the first 3 decimals are identical.

The spelling of 97264921 in words is "ninety-seven million, two hundred sixty-four thousand, nine hundred twenty-one".