83457117 has 6 divisors (see below), whose sum is σ = 120549182. Its totient is φ = 55638072.

The previous prime is 83457107. The next prime is 83457149. The reversal of 83457117 is 71175438.

83457117 is a `hidden beast` number, since 83 + 4 + 571 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 3426201 = 8946^2 + 1851^2 .

It is not a de Polignac number, because 83457117 - 2⁸ = 83456861 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 (83457107) 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, 4636498 + ... + 4636515.

Almost surely, 2^83457117 is an apocalyptic number.

It is an amenable number.

83457117 is a deficient number, since it is larger than the sum of its proper divisors (37092065).

83457117 is a wasteful number, since it uses less digits than its factorization.

83457117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9273019 (or 9273016 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 83457117 is about 9135.4866865428. The cubic root of 83457117 is about 437.0063953598.

The spelling of 83457117 in words is "eighty-three million, four hundred fifty-seven thousand, one hundred seventeen".