83120791 has 12 divisors (see below), whose sum is σ = 90558648. Its totient is φ = 76256544.

The previous prime is 83120789. The next prime is 83120831. The reversal of 83120791 is 19702138.

It is not a de Polignac number, because 83120791 - 2¹ = 83120789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83120711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27816 + ... + 30658.

It is an arithmetic number, because the mean of its divisors is an integer number (7546554).

Almost surely, 2^83120791 is an apocalyptic number.

83120791 is a deficient number, since it is larger than the sum of its proper divisors (7437857).

83120791 is a wasteful number, since it uses less digits than its factorization.

83120791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 83120791 is about 9117.0604363468. The cubic root of 83120791 is about 436.4185705527.

The spelling of 83120791 in words is "eighty-three million, one hundred twenty thousand, seven hundred ninety-one".