79533479 has 4 divisors (see below), whose sum is σ = 79551480. Its totient is φ = 79515480.

The previous prime is 79533451. The next prime is 79533511. The reversal of 79533479 is 97433597.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79533479 - 2²⁴ = 62756263 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 (79533439) 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, 2684 + ... + 12894.

It is an arithmetic number, because the mean of its divisors is an integer number (19887870).

Almost surely, 2^79533479 is an apocalyptic number.

79533479 is a deficient number, since it is larger than the sum of its proper divisors (18001).

79533479 is a wasteful number, since it uses less digits than its factorization.

79533479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000.

The product of its digits is 714420, while the sum is 47.

The square root of 79533479 is about 8918.1544615464. The cubic root of 79533479 is about 430.0477304147.

The spelling of 79533479 in words is "seventy-nine million, five hundred thirty-three thousand, four hundred seventy-nine".