79693885 has 16 divisors (see below), whose sum is σ = 104140800. Its totient is φ = 58314816.

The previous prime is 79693883. The next prime is 79693891. The reversal of 79693885 is 58839697.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 79693885 - 2¹ = 79693883 is a prime.

It is a super-2 number, since 2×79693885² = 12702230612786450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79693883) 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, 11709 + ... + 17218.

It is an arithmetic number, because the mean of its divisors is an integer number (6508800).

Almost surely, 2^79693885 is an apocalyptic number.

It is an amenable number.

79693885 is a deficient number, since it is larger than the sum of its proper divisors (24446915).

79693885 is a wasteful number, since it uses less digits than its factorization.

79693885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28980.

The product of its digits is 3265920, while the sum is 55.

The square root of 79693885 is about 8927.1431600485. The cubic root of 79693885 is about 430.3366482126.

The spelling of 79693885 in words is "seventy-nine million, six hundred ninety-three thousand, eight hundred eighty-five".