79609621 has 8 divisors (see below), whose sum is σ = 97981184. Its totient is φ = 62987760.

The previous prime is 79609597. The next prime is 79609633. The reversal of 79609621 is 12690697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79609621 - 2¹¹ = 79607573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79609121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437325 + ... + 437506.

It is an arithmetic number, because the mean of its divisors is an integer number (12247648).

Almost surely, 2^79609621 is an apocalyptic number.

It is an amenable number.

79609621 is a deficient number, since it is larger than the sum of its proper divisors (18371563).

79609621 is a wasteful number, since it uses less digits than its factorization.

79609621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874851.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 79609621 is about 8922.4223728761. The cubic root of 79609621 is about 430.1849231658.

The spelling of 79609621 in words is "seventy-nine million, six hundred nine thousand, six hundred twenty-one".