79633679 has 4 divisors (see below), whose sum is σ = 79689720. Its totient is φ = 79577640.

The previous prime is 79633669. The next prime is 79633709. The reversal of 79633679 is 97633697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97633697 = 7 ⋅13947671.

It is a cyclic number.

It is not a de Polignac number, because 79633679 - 2⁴ = 79633663 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 (79633639) 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, 25832 + ... + 28749.

It is an arithmetic number, because the mean of its divisors is an integer number (19922430).

Almost surely, 2^79633679 is an apocalyptic number.

79633679 is a deficient number, since it is larger than the sum of its proper divisors (56041).

79633679 is a wasteful number, since it uses less digits than its factorization.

79633679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56040.

The product of its digits is 1285956, while the sum is 50.

The square root of 79633679 is about 8923.7704475182. The cubic root of 79633679 is about 430.2282527132.

The spelling of 79633679 in words is "seventy-nine million, six hundred thirty-three thousand, six hundred seventy-nine".