83589997 has 2 divisors, whose sum is σ = 83589998. Its totient is φ = 83589996.

The previous prime is 83589991. The next prime is 83590007. The reversal of 83589997 is 79998538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82919236 + 670761 = 9106^2 + 819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83589997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83589991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41794998 + 41794999.

It is an arithmetic number, because the mean of its divisors is an integer number (41794999).

Almost surely, 2^83589997 is an apocalyptic number.

It is an amenable number.

83589997 is a deficient number, since it is larger than the sum of its proper divisors (1).

83589997 is an equidigital number, since it uses as much as digits as its factorization.

83589997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 58.

The square root of 83589997 is about 9142.7565318125. The cubic root of 83589997 is about 437.2382054992.

The spelling of 83589997 in words is "eighty-three million, five hundred eighty-nine thousand, nine hundred ninety-seven".