90339671 has 2 divisors, whose sum is σ = 90339672. Its totient is φ = 90339670.

The previous prime is 90339659. The next prime is 90339677. The reversal of 90339671 is 17693309.

It is a strong prime.

It is an emirp because it is prime and its reverse (17693309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90339671 - 2¹⁸ = 90077527 is a prime.

It is a super-2 number, since 2×90339671² = 16322512312776482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90339677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45169835 + 45169836.

It is an arithmetic number, because the mean of its divisors is an integer number (45169836).

Almost surely, 2^90339671 is an apocalyptic number.

90339671 is a deficient number, since it is larger than the sum of its proper divisors (1).

90339671 is an equidigital number, since it uses as much as digits as its factorization.

90339671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 90339671 is about 9504.7183545858. The cubic root of 90339671 is about 448.7035458569.

The spelling of 90339671 in words is "ninety million, three hundred thirty-nine thousand, six hundred seventy-one".