79018985 has 8 divisors (see below), whose sum is σ = 96840576. Its totient is φ = 61870000.

The previous prime is 79018957. The next prime is 79018987. The reversal of 79018985 is 58981097.

It is a happy number.

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

It is not a de Polignac number, because 79018985 - 2¹⁸ = 78756841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79018987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167891 + ... + 168360.

It is an arithmetic number, because the mean of its divisors is an integer number (12105072).

Almost surely, 2^79018985 is an apocalyptic number.

It is an amenable number.

79018985 is a deficient number, since it is larger than the sum of its proper divisors (17821591).

79018985 is a wasteful number, since it uses less digits than its factorization.

79018985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336303.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 79018985 is about 8889.2623428494. The cubic root of 79018985 is about 429.1184119350.

The spelling of 79018985 in words is "seventy-nine million, eighteen thousand, nine hundred eighty-five".