79859090 has 32 divisors (see below), whose sum is σ = 151848000. Its totient is φ = 30155328.

The previous prime is 79859089. The next prime is 79859099. The reversal of 79859090 is 9095897.

It is a super-3 number, since 3×79859090³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (79859099) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 71456 + ... + 72564.

It is an arithmetic number, because the mean of its divisors is an integer number (4745250).

Almost surely, 2^79859090 is an apocalyptic number.

79859090 is a deficient number, since it is larger than the sum of its proper divisors (71988910).

79859090 is a wasteful number, since it uses less digits than its factorization.

79859090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 79859090 is about 8936.3913298378. The cubic root of 79859090 is about 430.6338048339.

The spelling of 79859090 in words is "seventy-nine million, eight hundred fifty-nine thousand, ninety".