90508337 has 2 divisors, whose sum is σ = 90508338. Its totient is φ = 90508336.

The previous prime is 90508291. The next prime is 90508339. The reversal of 90508337 is 73380509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72522256 + 17986081 = 8516^2 + 4241^2 .

It is a cyclic number.

It is not a de Polignac number, because 90508337 - 2²⁰ = 89459761 is a prime.

Together with 90508339, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90508297 and 90508306.

It is not a weakly prime, because it can be changed into another prime (90508339) 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, 45254168 + 45254169.

It is an arithmetic number, because the mean of its divisors is an integer number (45254169).

Almost surely, 2^90508337 is an apocalyptic number.

It is an amenable number.

90508337 is a deficient number, since it is larger than the sum of its proper divisors (1).

90508337 is an equidigital number, since it uses as much as digits as its factorization.

90508337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 90508337 is about 9513.5869681209. The cubic root of 90508337 is about 448.9826184610.

The spelling of 90508337 in words is "ninety million, five hundred eight thousand, three hundred thirty-seven".