89903691 has 24 divisors (see below), whose sum is σ = 133647696. Its totient is φ = 58213440.

The previous prime is 89903677. The next prime is 89903713. The reversal of 89903691 is 19630998.

It is not a de Polignac number, because 89903691 - 2¹⁴ = 89887307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89903291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44581 + ... + 46553.

It is an arithmetic number, because the mean of its divisors is an integer number (5568654).

Almost surely, 2^89903691 is an apocalyptic number.

89903691 is a deficient number, since it is larger than the sum of its proper divisors (43744005).

89903691 is a wasteful number, since it uses less digits than its factorization.

89903691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 89903691 is about 9481.7556918537. The cubic root of 89903691 is about 447.9805658954.

The spelling of 89903691 in words is "eighty-nine million, nine hundred three thousand, six hundred ninety-one".