83973089 has 2 divisors, whose sum is σ = 83973090. Its totient is φ = 83973088.

The previous prime is 83973077. The next prime is 83973137. The reversal of 83973089 is 98037938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69472225 + 14500864 = 8335^2 + 3808^2 .

It is a cyclic number.

It is not a de Polignac number, because 83973089 - 2⁴ = 83973073 is a prime.

It is not a weakly prime, because it can be changed into another prime (83973059) 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 as a sum of consecutive naturals, namely, 41986544 + 41986545.

It is an arithmetic number, because the mean of its divisors is an integer number (41986545).

Almost surely, 2^83973089 is an apocalyptic number.

It is an amenable number.

83973089 is a deficient number, since it is larger than the sum of its proper divisors (1).

83973089 is an equidigital number, since it uses as much as digits as its factorization.

83973089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 83973089 is about 9163.6831568971. The cubic root of 83973089 is about 437.9051402476.

The spelling of 83973089 in words is "eighty-three million, nine hundred seventy-three thousand, eighty-nine".