83133791 has 8 divisors (see below), whose sum is σ = 94795344. Its totient is φ = 72224640.

The previous prime is 83133781. The next prime is 83133793. The reversal of 83133791 is 19733138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83133791 - 2⁶ = 83133727 is a prime.

It is a super-2 number, since 2×83133791² = 13822454412063362, which contains 22 as substring.

It is a Duffinian number.

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, 187865 + ... + 188306.

It is an arithmetic number, because the mean of its divisors is an integer number (11849418).

Almost surely, 2^83133791 is an apocalyptic number.

83133791 is a deficient number, since it is larger than the sum of its proper divisors (11661553).

83133791 is a wasteful number, since it uses less digits than its factorization.

83133791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376201.

The product of its digits is 13608, while the sum is 35.

The square root of 83133791 is about 9117.7733575693. The cubic root of 83133791 is about 436.4413211610.

The spelling of 83133791 in words is "eighty-three million, one hundred thirty-three thousand, seven hundred ninety-one".