79859153 has 12 divisors (see below), whose sum is σ = 88991364. Its totient is φ = 71596800.

The previous prime is 79859141. The next prime is 79859159. The reversal of 79859153 is 35195897.

It can be written as a sum of positive squares in 2 ways, for example, as 67699984 + 12159169 = 8228^2 + 3487^2 .

It is not a de Polignac number, because 79859153 - 2⁴ = 79859137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79859098 and 79859107.

It is not an unprimeable number, because it can be changed into a prime (79859159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4313 + ... + 13353.

It is an arithmetic number, because the mean of its divisors is an integer number (7415947).

Almost surely, 2^79859153 is an apocalyptic number.

79859153 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

79859153 is a deficient number, since it is larger than the sum of its proper divisors (9132211).

79859153 is a wasteful number, since it uses less digits than its factorization.

79859153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9136 (or 9125 counting only the distinct ones).

The product of its digits is 340200, while the sum is 47.

The square root of 79859153 is about 8936.3948547499. The cubic root of 79859153 is about 430.6339180747.

The spelling of 79859153 in words is "seventy-nine million, eight hundred fifty-nine thousand, one hundred fifty-three".