97236921 has 4 divisors (see below), whose sum is σ = 129649232. Its totient is φ = 64824612.

The previous prime is 97236901. The next prime is 97236941. The reversal of 97236921 is 12963279.

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 an interprime number because it is at equal distance from previous prime (97236901) and next prime (97236941).

It is not a de Polignac number, because 97236921 - 2¹¹ = 97234873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97236921.

It is not an unprimeable number, because it can be changed into a prime (97236901) 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, 16206151 + ... + 16206156.

It is an arithmetic number, because the mean of its divisors is an integer number (32412308).

Almost surely, 2^97236921 is an apocalyptic number.

It is an amenable number.

97236921 is a deficient number, since it is larger than the sum of its proper divisors (32412311).

97236921 is a wasteful number, since it uses less digits than its factorization.

97236921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32412310.

The product of its digits is 40824, while the sum is 39.

The square root of 97236921 is about 9860.8783077371. The cubic root of 97236921 is about 459.8438679320.

The spelling of 97236921 in words is "ninety-seven million, two hundred thirty-six thousand, nine hundred twenty-one".