83513444 has 18 divisors (see below), whose sum is σ = 170009910. Its totient is φ = 35791392.

The previous prime is 83513431. The next prime is 83513449. The reversal of 83513444 is 44431538.

It can be written as a sum of positive squares in only one way, i.e., 68690944 + 14822500 = 8288^2 + 3850^2 .

It is a super-2 number, since 2×83513444² = 13948990657482272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83513444.

It is not an unprimeable number, because it can be changed into a prime (83513449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212849 + ... + 213240.

It is an arithmetic number, because the mean of its divisors is an integer number (9444995).

Almost surely, 2^83513444 is an apocalyptic number.

It is an amenable number.

83513444 is an abundant number, since it is smaller than the sum of its proper divisors (86496466).

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

83513444 is a wasteful number, since it uses less digits than its factorization.

83513444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426107 (or 426098 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 83513444 is about 9138.5690345918. The cubic root of 83513444 is about 437.1046882492.

The spelling of 83513444 in words is "eighty-three million, five hundred thirteen thousand, four hundred forty-four".