90412881 has 8 divisors (see below), whose sum is σ = 129823680. Its totient is φ = 55638672.

The previous prime is 90412871. The next prime is 90412937. The reversal of 90412881 is 18821409.

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

It is not a de Polignac number, because 90412881 - 2⁹ = 90412369 is a prime.

It is a super-2 number, since 2×90412881² = 16348978101440322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90412801) 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, 1159101 + ... + 1159178.

It is an arithmetic number, because the mean of its divisors is an integer number (16227960).

Almost surely, 2^90412881 is an apocalyptic number.

It is an amenable number.

90412881 is a deficient number, since it is larger than the sum of its proper divisors (39410799).

90412881 is a wasteful number, since it uses less digits than its factorization.

90412881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318295.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 90412881 is about 9508.5688197541. The cubic root of 90412881 is about 448.8247208129.

The spelling of 90412881 in words is "ninety million, four hundred twelve thousand, eight hundred eighty-one".