65112879 has 32 divisors (see below), whose sum is σ = 98106624. Its totient is φ = 38142720.

The previous prime is 65112877. The next prime is 65112889. The reversal of 65112879 is 97821156.

It is not a de Polignac number, because 65112879 - 2¹ = 65112877 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65112871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68284 + ... + 69230.

It is an arithmetic number, because the mean of its divisors is an integer number (3065832).

Almost surely, 2^65112879 is an apocalyptic number.

65112879 is a deficient number, since it is larger than the sum of its proper divisors (32993745).

65112879 is a wasteful number, since it uses less digits than its factorization.

65112879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its digits is 30240, while the sum is 39.

The square root of 65112879 is about 8069.2551700885. The cubic root of 65112879 is about 402.3051876713.

It can be divided in two parts, 651 and 12879, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 65112879 in words is "sixty-five million, one hundred twelve thousand, eight hundred seventy-nine".