69872379 has 16 divisors (see below), whose sum is σ = 94686240. Its totient is φ = 45826560.

The previous prime is 69872359. The next prime is 69872393. The reversal of 69872379 is 97327896.

It is not a de Polignac number, because 69872379 - 2⁵ = 69872347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69872359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50659 + ... + 52019.

It is an arithmetic number, because the mean of its divisors is an integer number (5917890).

Almost surely, 2^69872379 is an apocalyptic number.

69872379 is a deficient number, since it is larger than the sum of its proper divisors (24813861).

69872379 is a wasteful number, since it uses less digits than its factorization.

69872379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its digits is 1143072, while the sum is 51.

The square root of 69872379 is about 8358.9699724308. The cubic root of 69872379 is about 411.8779192605.

The spelling of 69872379 in words is "sixty-nine million, eight hundred seventy-two thousand, three hundred seventy-nine".