83494657 has 4 divisors (see below), whose sum is σ = 83520580. Its totient is φ = 83468736.

The previous prime is 83494639. The next prime is 83494661. The reversal of 83494657 is 75649438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 49575681 = 5824^2 + 7041^2 .

It is a cyclic number.

It is not a de Polignac number, because 83494657 - 2²³ = 75106049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83491657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7308 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (20880145).

Almost surely, 2^83494657 is an apocalyptic number.

It is an amenable number.

83494657 is a deficient number, since it is larger than the sum of its proper divisors (25923).

83494657 is a wasteful number, since it uses less digits than its factorization.

83494657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25922.

The product of its digits is 725760, while the sum is 46.

The square root of 83494657 is about 9137.5410806190. The cubic root of 83494657 is about 437.0719090892.

The spelling of 83494657 in words is "eighty-three million, four hundred ninety-four thousand, six hundred fifty-seven".