79027985 has 8 divisors (see below), whose sum is σ = 100412136. Its totient is φ = 59503360.

The previous prime is 79027981. The next prime is 79028017. The reversal of 79027985 is 58972097.

It can be written as a sum of positive squares in 4 ways, for example, as 16032016 + 62995969 = 4004^2 + 7937^2 .

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

It is not a de Polignac number, because 79027985 - 2² = 79027981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79027981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464786 + ... + 464955.

It is an arithmetic number, because the mean of its divisors is an integer number (12551517).

Almost surely, 2^79027985 is an apocalyptic number.

It is an amenable number.

79027985 is a deficient number, since it is larger than the sum of its proper divisors (21384151).

79027985 is a wasteful number, since it uses less digits than its factorization.

79027985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929763.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 79027985 is about 8889.7685571673. The cubic root of 79027985 is about 429.1347030373.

The spelling of 79027985 in words is "seventy-nine million, twenty-seven thousand, nine hundred eighty-five".