90487632 has 20 divisors (see below), whose sum is σ = 233759840. Its totient is φ = 30162528.

The previous prime is 90487591. The next prime is 90487637. The reversal of 90487632 is 23678409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90487637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942532 + ... + 942627.

It is an arithmetic number, because the mean of its divisors is an integer number (11687992).

Almost surely, 2^90487632 is an apocalyptic number.

It is an amenable number.

90487632 is an abundant number, since it is smaller than the sum of its proper divisors (143272208).

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

90487632 is a wasteful number, since it uses less digits than its factorization.

90487632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885170 (or 1885164 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 90487632 is about 9512.4987253613. The cubic root of 90487632 is about 448.9483789114.

It can be divided in two parts, 90487 and 632, that added together give a palindrome (91119).

The spelling of 90487632 in words is "ninety million, four hundred eighty-seven thousand, six hundred thirty-two".