90883891 has 16 divisors (see below), whose sum is σ = 105984000. Its totient is φ = 76328928.

The previous prime is 90883889. The next prime is 90883907. The reversal of 90883891 is 19838809.

It is a cyclic number.

It is not a de Polignac number, because 90883891 - 2¹ = 90883889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90883831) 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, 81846 + ... + 82948.

It is an arithmetic number, because the mean of its divisors is an integer number (6624000).

Almost surely, 2^90883891 is an apocalyptic number.

90883891 is a deficient number, since it is larger than the sum of its proper divisors (15100109).

90883891 is a wasteful number, since it uses less digits than its factorization.

90883891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 90883891 is about 9533.3043064826. The cubic root of 90883891 is about 449.6027621984.

The spelling of 90883891 in words is "ninety million, eight hundred eighty-three thousand, eight hundred ninety-one".