83913156 has 72 divisors (see below), whose sum is σ = 231888384. Its totient is φ = 25470720.

The previous prime is 83913127. The next prime is 83913169. The reversal of 83913156 is 65131938.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 83913156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16761 + ... + 21183.

It is an arithmetic number, because the mean of its divisors is an integer number (3220672).

Almost surely, 2^83913156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83913156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115944192).

83913156 is an abundant number, since it is smaller than the sum of its proper divisors (147975228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83913156 is a wasteful number, since it uses less digits than its factorization.

83913156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481 (or 4476 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 83913156 is about 9160.4124361297. The cubic root of 83913156 is about 437.8009353752.

The spelling of 83913156 in words is "eighty-three million, nine hundred thirteen thousand, one hundred fifty-six".