80653839 has 16 divisors (see below), whose sum is σ = 124384512. Its totient is φ = 45531648.

The previous prime is 80653829. The next prime is 80653861. The reversal of 80653839 is 93835608.

It is not a de Polignac number, because 80653839 - 2¹⁵ = 80621071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80653839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80653829) 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, 21394 + ... + 24879.

It is an arithmetic number, because the mean of its divisors is an integer number (7774032).

Almost surely, 2^80653839 is an apocalyptic number.

80653839 is a deficient number, since it is larger than the sum of its proper divisors (43730673).

80653839 is a wasteful number, since it uses less digits than its factorization.

80653839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46366.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 80653839 is about 8980.7482427691. The cubic root of 80653839 is about 432.0576322716.

It can be divided in two parts, 806 and 53839, that added together give a palindrome (54645).

The spelling of 80653839 in words is "eighty million, six hundred fifty-three thousand, eight hundred thirty-nine".