90383691 has 16 divisors (see below), whose sum is σ = 125141760. Its totient is φ = 57956640.

The previous prime is 90383651. The next prime is 90383707. The reversal of 90383691 is 19638309.

90383691 = T₂₅₈ + T₂₅₉ + ... + T₈₂₃.

It is not a de Polignac number, because 90383691 - 2¹³ = 90375499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90383621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22786 + ... + 26456.

It is an arithmetic number, because the mean of its divisors is an integer number (7821360).

Almost surely, 2^90383691 is an apocalyptic number.

90383691 is a deficient number, since it is larger than the sum of its proper divisors (34758069).

90383691 is a wasteful number, since it uses less digits than its factorization.

90383691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 90383691 is about 9507.0337645346. The cubic root of 90383691 is about 448.7764142603.

The spelling of 90383691 in words is "ninety million, three hundred eighty-three thousand, six hundred ninety-one".