90080091 has 12 divisors (see below), whose sum is σ = 130224432. Its totient is φ = 60003216.

The previous prime is 90080077. The next prime is 90080099. The reversal of 90080091 is 19008009.

It is not a de Polignac number, because 90080091 - 2⁶ = 90080027 is a prime.

It is a super-2 number, since 2×90080091² = 16228845589136562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90080099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9565 + ... + 16481.

It is an arithmetic number, because the mean of its divisors is an integer number (10852036).

Almost surely, 2^90080091 is an apocalyptic number.

90080091 is a deficient number, since it is larger than the sum of its proper divisors (40144341).

90080091 is a wasteful number, since it uses less digits than its factorization.

90080091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370 (or 8367 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 90080091 is about 9491.0532081535. The cubic root of 90080091 is about 448.2733686455.

The spelling of 90080091 in words is "ninety million, eighty thousand, ninety-one".