90885571 has 8 divisors (see below), whose sum is σ = 104139360. Its totient is φ = 77699328.

The previous prime is 90885559. The next prime is 90885577. The reversal of 90885571 is 17558809.

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

It is not a de Polignac number, because 90885571 - 2⁵ = 90885539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90885577) 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, 13966 + ... + 19411.

It is an arithmetic number, because the mean of its divisors is an integer number (13017420).

Almost surely, 2^90885571 is an apocalyptic number.

90885571 is a deficient number, since it is larger than the sum of its proper divisors (13253789).

90885571 is a wasteful number, since it uses less digits than its factorization.

90885571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33773.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 90885571 is about 9533.3924182318. The cubic root of 90885571 is about 449.6055325023.

The spelling of 90885571 in words is "ninety million, eight hundred eighty-five thousand, five hundred seventy-one".