79866922 has 8 divisors (see below), whose sum is σ = 119839716. Its totient is φ = 39920352.

The previous prime is 79866883. The next prime is 79866949. The reversal of 79866922 is 22966897.

It can be written as a sum of positive squares in 2 ways, for example, as 62900761 + 16966161 = 7931^2 + 4119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5478 + ... + 13774.

It is a vampire number, since it can be written as 8297 ⋅ 9626 (with its own digits).

Almost surely, 2^79866922 is an apocalyptic number.

79866922 is a deficient number, since it is larger than the sum of its proper divisors (39972794).

79866922 is a wasteful number, since it uses less digits than its factorization.

79866922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112.

The product of its digits is 653184, while the sum is 49.

The square root of 79866922 is about 8936.8295272988. The cubic root of 79866922 is about 430.6478821865.

The spelling of 79866922 in words is "seventy-nine million, eight hundred sixty-six thousand, nine hundred twenty-two".