83659457 has 4 divisors (see below), whose sum is σ = 95610816. Its totient is φ = 71708100.

The previous prime is 83659447. The next prime is 83659469. The reversal of 83659457 is 75495638.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83659457 - 2²⁰ = 82610881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83659417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5975669 + ... + 5975682.

It is an arithmetic number, because the mean of its divisors is an integer number (23902704).

Almost surely, 2^83659457 is an apocalyptic number.

It is an amenable number.

83659457 is a deficient number, since it is larger than the sum of its proper divisors (11951359).

83659457 is a wasteful number, since it uses less digits than its factorization.

83659457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11951358.

The product of its digits is 907200, while the sum is 47.

The square root of 83659457 is about 9146.5543785625. The cubic root of 83659457 is about 437.3592812198.

The spelling of 83659457 in words is "eighty-three million, six hundred fifty-nine thousand, four hundred fifty-seven".