90089447 has 8 divisors (see below), whose sum is σ = 103536000. Its totient is φ = 76787064.

The previous prime is 90089411. The next prime is 90089491. The reversal of 90089447 is 74498009.

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 90089447 - 2⁶ = 90089383 is a prime.

It is a super-2 number, since 2×90089447² = 16232216921531618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90089407) 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, 34697 + ... + 37202.

It is an arithmetic number, because the mean of its divisors is an integer number (12942000).

Almost surely, 2^90089447 is an apocalyptic number.

90089447 is a deficient number, since it is larger than the sum of its proper divisors (13446553).

90089447 is a wasteful number, since it uses less digits than its factorization.

90089447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72085.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 90089447 is about 9491.5460805919. The cubic root of 90089447 is about 448.2888877996.

The spelling of 90089447 in words is "ninety million, eighty-nine thousand, four hundred forty-seven".