79350921 has 32 divisors (see below), whose sum is σ = 128208640. Its totient is φ = 48813840.

The previous prime is 79350913. The next prime is 79350959. The reversal of 79350921 is 12905397.

It is not a de Polignac number, because 79350921 - 2³ = 79350913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79350121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27036 + ... + 29826.

It is an arithmetic number, because the mean of its divisors is an integer number (4006520).

Almost surely, 2^79350921 is an apocalyptic number.

It is an amenable number.

79350921 is a deficient number, since it is larger than the sum of its proper divisors (48857719).

79350921 is an equidigital number, since it uses as much as digits as its factorization.

79350921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825 (or 2807 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 79350921 is about 8907.9133920352. The cubic root of 79350921 is about 429.7184401593.

The spelling of 79350921 in words is "seventy-nine million, three hundred fifty thousand, nine hundred twenty-one".