79773667 has 4 divisors (see below), whose sum is σ = 80263240. Its totient is φ = 79284096.

The previous prime is 79773649. The next prime is 79773691. The reversal of 79773667 is 76637797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79773667 - 2⁷ = 79773539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79773607) 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, 244542 + ... + 244867.

It is an arithmetic number, because the mean of its divisors is an integer number (20065810).

Almost surely, 2^79773667 is an apocalyptic number.

79773667 is a deficient number, since it is larger than the sum of its proper divisors (489573).

79773667 is a wasteful number, since it uses less digits than its factorization.

79773667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489572.

The product of its digits is 2333772, while the sum is 52.

The square root of 79773667 is about 8931.6105490555. The cubic root of 79773667 is about 430.4802044709.

The spelling of 79773667 in words is "seventy-nine million, seven hundred seventy-three thousand, six hundred sixty-seven".