79823667 has 64 divisors (see below), whose sum is σ = 139788288. Its totient is φ = 39312000.

The previous prime is 79823641. The next prime is 79823677. The reversal of 79823667 is 76632897.

It is not a de Polignac number, because 79823667 - 2⁶ = 79823603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79823677) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 508353 + ... + 508509.

It is an arithmetic number, because the mean of its divisors is an integer number (2184192).

Almost surely, 2^79823667 is an apocalyptic number.

79823667 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

79823667 is a deficient number, since it is larger than the sum of its proper divisors (59964621).

79823667 is a wasteful number, since it uses less digits than its factorization.

79823667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its digits is 762048, while the sum is 48.

The square root of 79823667 is about 8934.4091578571. The cubic root of 79823667 is about 430.5701235119.

The spelling of 79823667 in words is "seventy-nine million, eight hundred twenty-three thousand, six hundred sixty-seven".