90508007 has 2 divisors, whose sum is σ = 90508008. Its totient is φ = 90508006.

The previous prime is 90507997. The next prime is 90508021. The reversal of 90508007 is 70080509.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (70080509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90508007 - 2⁶ = 90507943 is a prime.

It is a super-2 number, since 2×90508007² = 16383398662224098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90508087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45254003 + 45254004.

It is an arithmetic number, because the mean of its divisors is an integer number (45254004).

Almost surely, 2^90508007 is an apocalyptic number.

90508007 is a deficient number, since it is larger than the sum of its proper divisors (1).

90508007 is an equidigital number, since it uses as much as digits as its factorization.

90508007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 90508007 is about 9513.5696244890. The cubic root of 90508007 is about 448.9820727858.

The spelling of 90508007 in words is "ninety million, five hundred eight thousand, seven".