79638067 has 8 divisors (see below), whose sum is σ = 81221616. Its totient is φ = 78070272.

The previous prime is 79638049. The next prime is 79638071. The reversal of 79638067 is 76083697.

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 79638067 - 2¹⁹ = 79113779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79638007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6543 + ... + 14215.

It is an arithmetic number, because the mean of its divisors is an integer number (10152702).

Almost surely, 2^79638067 is an apocalyptic number.

79638067 is a deficient number, since it is larger than the sum of its proper divisors (1583549).

79638067 is a wasteful number, since it uses less digits than its factorization.

79638067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 79638067 is about 8924.0163043329. The cubic root of 79638067 is about 430.2361547588.

The spelling of 79638067 in words is "seventy-nine million, six hundred thirty-eight thousand, sixty-seven".