83872653 has 4 divisors (see below), whose sum is σ = 111830208. Its totient is φ = 55915100.

The previous prime is 83872637. The next prime is 83872667. The reversal of 83872653 is 35627838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83872653 - 2⁴ = 83872637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83872253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13978773 + ... + 13978778.

It is an arithmetic number, because the mean of its divisors is an integer number (27957552).

Almost surely, 2^83872653 is an apocalyptic number.

It is an amenable number.

83872653 is a deficient number, since it is larger than the sum of its proper divisors (27957555).

83872653 is a wasteful number, since it uses less digits than its factorization.

83872653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27957554.

The product of its digits is 241920, while the sum is 42.

The square root of 83872653 is about 9158.2014063898. The cubic root of 83872653 is about 437.7304851388.

The spelling of 83872653 in words is "eighty-three million, eight hundred seventy-two thousand, six hundred fifty-three".