83589973 has 2 divisors, whose sum is σ = 83589974. Its totient is φ = 83589972.

The previous prime is 83589953. The next prime is 83589983. The reversal of 83589973 is 37998538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77404804 + 6185169 = 8798^2 + 2487^2 .

It is a cyclic number.

It is not a de Polignac number, because 83589973 - 2⁵ = 83589941 is a prime.

It is a super-2 number, since 2×83589973² = 13974567172281458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83589973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83589943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41794986 + 41794987.

It is an arithmetic number, because the mean of its divisors is an integer number (41794987).

Almost surely, 2^83589973 is an apocalyptic number.

It is an amenable number.

83589973 is a deficient number, since it is larger than the sum of its proper divisors (1).

83589973 is an equidigital number, since it uses as much as digits as its factorization.

83589973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 83589973 is about 9142.7552192980. The cubic root of 83589973 is about 437.2381636532.

The spelling of 83589973 in words is "eighty-three million, five hundred eighty-nine thousand, nine hundred seventy-three".