79975718 has 8 divisors (see below), whose sum is σ = 127020312. Its totient is φ = 37635616.

The previous prime is 79975699. The next prime is 79975723. The reversal of 79975718 is 81757997.

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

It is a super-2 number, since 2×79975718² = 12792230939231048, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79975718.

It is a congruent number.

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, 1176080 + ... + 1176147.

It is an arithmetic number, because the mean of its divisors is an integer number (15877539).

Almost surely, 2^79975718 is an apocalyptic number.

79975718 is a deficient number, since it is larger than the sum of its proper divisors (47044594).

79975718 is a wasteful number, since it uses less digits than its factorization.

79975718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352246.

The product of its digits is 1111320, while the sum is 53.

The square root of 79975718 is about 8942.9144019162. The cubic root of 79975718 is about 430.8433386090.

The spelling of 79975718 in words is "seventy-nine million, nine hundred seventy-five thousand, seven hundred eighteen".