79215023 has 4 divisors (see below), whose sum is σ = 79331688. Its totient is φ = 79098360.

The previous prime is 79214983. The next prime is 79215029. The reversal of 79215023 is 32051297.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32051297 = 43 ⋅745379.

It is a cyclic number.

It is not a de Polignac number, because 79215023 - 2¹⁶ = 79149487 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 (79215029) 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, 57308 + ... + 58673.

It is an arithmetic number, because the mean of its divisors is an integer number (19832922).

Almost surely, 2^79215023 is an apocalyptic number.

79215023 is a deficient number, since it is larger than the sum of its proper divisors (116665).

79215023 is a wasteful number, since it uses less digits than its factorization.

79215023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116664.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 79215023 is about 8900.2821865377. The cubic root of 79215023 is about 429.4729851375.

The spelling of 79215023 in words is "seventy-nine million, two hundred fifteen thousand, twenty-three".