90869488 has 40 divisors (see below), whose sum is σ = 187086240. Its totient is φ = 42608640.

The previous prime is 90869483. The next prime is 90869501. The reversal of 90869488 is 88496809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90869483) 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, 119028 + ... + 119788.

It is an arithmetic number, because the mean of its divisors is an integer number (4677156).

Almost surely, 2^90869488 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 90869488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93543120).

90869488 is an abundant number, since it is smaller than the sum of its proper divisors (96216752).

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

90869488 is a wasteful number, since it uses less digits than its factorization.

90869488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 90869488 is about 9532.5488721538. The cubic root of 90869488 is about 449.5790103886.

The spelling of 90869488 in words is "ninety million, eight hundred sixty-nine thousand, four hundred eighty-eight".