90909095 has 16 divisors (see below), whose sum is σ = 114361632. Its totient is φ = 69296640.

The previous prime is 90909089. The next prime is 90909101. The reversal of 90909095 is 59090909.

It is an interprime number because it is at equal distance from previous prime (90909089) and next prime (90909101).

It is not a de Polignac number, because 90909095 - 2⁶ = 90909031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3659 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (7147602).

Almost surely, 2^90909095 is an apocalyptic number.

90909095 is a deficient number, since it is larger than the sum of its proper divisors (23452537).

90909095 is a wasteful number, since it uses less digits than its factorization.

90909095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10402.

The product of its (nonzero) digits is 32805, while the sum is 41.

The square root of 90909095 is about 9534.6261069850. The cubic root of 90909095 is about 449.6443197673.

The spelling of 90909095 in words is "ninety million, nine hundred nine thousand, ninety-five".