90954691 has 4 divisors (see below), whose sum is σ = 95741800. Its totient is φ = 86167584.

The previous prime is 90954683. The next prime is 90954697. The reversal of 90954691 is 19645909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19645909 = 31 ⋅633739.

It is not a de Polignac number, because 90954691 - 2³ = 90954683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90954697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393526 + ... + 2393563.

It is an arithmetic number, because the mean of its divisors is an integer number (23935450).

Almost surely, 2^90954691 is an apocalyptic number.

90954691 is a deficient number, since it is larger than the sum of its proper divisors (4787109).

90954691 is a wasteful number, since it uses less digits than its factorization.

90954691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787108.

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

The square root of 90954691 is about 9537.0168816040. The cubic root of 90954691 is about 449.7194811349.

The spelling of 90954691 in words is "ninety million, nine hundred fifty-four thousand, six hundred ninety-one".