90291876 has 48 divisors (see below), whose sum is σ = 222586560. Its totient is φ = 28487232.

The previous prime is 90291863. The next prime is 90291893. The reversal of 90291876 is 67819209.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81760 + ... + 82856.

It is an arithmetic number, because the mean of its divisors is an integer number (4637220).

Almost surely, 2^90291876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90291876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111293280).

90291876 is an abundant number, since it is smaller than the sum of its proper divisors (132294684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90291876 is a wasteful number, since it uses less digits than its factorization.

90291876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 90291876 is about 9502.2037443953. The cubic root of 90291876 is about 448.6244017080.

The spelling of 90291876 in words is "ninety million, two hundred ninety-one thousand, eight hundred seventy-six".