79483921 has 4 divisors (see below), whose sum is σ = 86709744. Its totient is φ = 72258100.

The previous prime is 79483889. The next prime is 79483927. The reversal of 79483921 is 12938497.

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 not a de Polignac number, because 79483921 - 2⁵ = 79483889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79483927) 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, 3612895 + ... + 3612916.

It is an arithmetic number, because the mean of its divisors is an integer number (21677436).

Almost surely, 2^79483921 is an apocalyptic number.

It is an amenable number.

79483921 is a deficient number, since it is larger than the sum of its proper divisors (7225823).

79483921 is a wasteful number, since it uses less digits than its factorization.

79483921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225822.

The product of its digits is 108864, while the sum is 43.

The square root of 79483921 is about 8915.3755389215. The cubic root of 79483921 is about 429.9583896999.

The spelling of 79483921 in words is "seventy-nine million, four hundred eighty-three thousand, nine hundred twenty-one".