90441091 has 8 divisors (see below), whose sum is σ = 97496784. Its totient is φ = 83399520.

The previous prime is 90441079. The next prime is 90441097. The reversal of 90441091 is 19014409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90441091 - 2⁵ = 90441059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90441097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12501 + ... + 18361.

It is an arithmetic number, because the mean of its divisors is an integer number (12187098).

Almost surely, 2^90441091 is an apocalyptic number.

90441091 is a deficient number, since it is larger than the sum of its proper divisors (7055693).

90441091 is a wasteful number, since it uses less digits than its factorization.

90441091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 90441091 is about 9510.0521029067. The cubic root of 90441091 is about 448.8713956842.

The spelling of 90441091 in words is "ninety million, four hundred forty-one thousand, ninety-one".