83090569 has 2 divisors, whose sum is σ = 83090570. Its totient is φ = 83090568.

The previous prime is 83090563. The next prime is 83090573. The reversal of 83090569 is 96509038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 29975625 = 7288^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 83090569 - 2³ = 83090561 is a prime.

It is a super-2 number, since 2×83090569² = 13808085313487522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (83090561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41545284 + 41545285.

It is an arithmetic number, because the mean of its divisors is an integer number (41545285).

Almost surely, 2^83090569 is an apocalyptic number.

It is an amenable number.

83090569 is a deficient number, since it is larger than the sum of its proper divisors (1).

83090569 is an equidigital number, since it uses as much as digits as its factorization.

83090569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 83090569 is about 9115.4028435391. The cubic root of 83090569 is about 436.3656714696.

The spelling of 83090569 in words is "eighty-three million, ninety thousand, five hundred sixty-nine".