83133790 has 16 divisors (see below), whose sum is σ = 150005520. Its totient is φ = 33172480.

The previous prime is 83133781. The next prime is 83133793. The reversal of 83133790 is 9733138.

It is a super-2 number, since 2×83133790² = 13822454079528200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83133793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731 + ... + 14110.

It is an arithmetic number, because the mean of its divisors is an integer number (9375345).

Almost surely, 2^83133790 is an apocalyptic number.

83133790 is a deficient number, since it is larger than the sum of its proper divisors (66871730).

83133790 is a wasteful number, since it uses less digits than its factorization.

83133790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 83133790 is about 9117.7733027313. The cubic root of 83133790 is about 436.4413194110.

The spelling of 83133790 in words is "eighty-three million, one hundred thirty-three thousand, seven hundred ninety".