90495691 has 16 divisors (see below), whose sum is σ = 107785440. Its totient is φ = 74891520.

The previous prime is 90495679. The next prime is 90495707. The reversal of 90495691 is 19659409.

It is not a de Polignac number, because 90495691 - 2⁷ = 90495563 is a prime.

It is a super-3 number, since 3×90495691³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90496691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6105 + ... + 14773.

It is an arithmetic number, because the mean of its divisors is an integer number (6736590).

Almost surely, 2^90495691 is an apocalyptic number.

90495691 is a deficient number, since it is larger than the sum of its proper divisors (17289749).

90495691 is a wasteful number, since it uses less digits than its factorization.

90495691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8766.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 90495691 is about 9512.9223165124. The cubic root of 90495691 is about 448.9617065802.

The spelling of 90495691 in words is "ninety million, four hundred ninety-five thousand, six hundred ninety-one".