97921433 has 4 divisors (see below), whose sum is σ = 98327988. Its totient is φ = 97514880.

The previous prime is 97921423. The next prime is 97921441. The reversal of 97921433 is 33412979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83685904 + 14235529 = 9148^2 + 3773^2 .

It is a cyclic number.

It is not a de Polignac number, because 97921433 - 2⁸ = 97921177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97921423) 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, 202916 + ... + 203397.

It is an arithmetic number, because the mean of its divisors is an integer number (24581997).

Almost surely, 2^97921433 is an apocalyptic number.

It is an amenable number.

97921433 is a deficient number, since it is larger than the sum of its proper divisors (406555).

97921433 is a wasteful number, since it uses less digits than its factorization.

97921433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406554.

The product of its digits is 40824, while the sum is 38.

The square root of 97921433 is about 9895.5259082072. The cubic root of 97921433 is about 460.9203894129.

The spelling of 97921433 in words is "ninety-seven million, nine hundred twenty-one thousand, four hundred thirty-three".