20079115 has 16 divisors (see below), whose sum is σ = 28735488. Its totient is φ = 13169376.

The previous prime is 20079113. The next prime is 20079119. The reversal of 20079115 is 51197002.

It is a cyclic number.

It is not a de Polignac number, because 20079115 - 2¹ = 20079113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20079115.

It is not an unprimeable number, because it can be changed into a prime (20079113) 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, 11667 + ... + 13276.

It is an arithmetic number, because the mean of its divisors is an integer number (1795968).

Almost surely, 2^20079115 is an apocalyptic number.

20079115 is a deficient number, since it is larger than the sum of its proper divisors (8656373).

20079115 is a wasteful number, since it uses less digits than its factorization.

20079115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24978.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 20079115 is about 4480.9725506858. The cubic root of 20079115 is about 271.7992093313.

The spelling of 20079115 in words is "twenty million, seventy-nine thousand, one hundred fifteen".