79805667 has 16 divisors (see below), whose sum is σ = 112931712. Its totient is φ = 49956480.

The previous prime is 79805647. The next prime is 79805669. The reversal of 79805667 is 76650897.

It is not a de Polignac number, because 79805667 - 2⁶ = 79805603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79805669) 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, 23448 + ... + 26634.

It is an arithmetic number, because the mean of its divisors is an integer number (7058232).

Almost surely, 2^79805667 is an apocalyptic number.

79805667 is a deficient number, since it is larger than the sum of its proper divisors (33126045).

79805667 is a wasteful number, since it uses less digits than its factorization.

79805667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 79805667 is about 8933.4017596882. The cubic root of 79805667 is about 430.5377569839.

The spelling of 79805667 in words is "seventy-nine million, eight hundred five thousand, six hundred sixty-seven".