90887004 has 36 divisors (see below), whose sum is σ = 247415896. Its totient is φ = 27965088.

The previous prime is 90887003. The next prime is 90887023. The reversal of 90887004 is 40078809.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 90887004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90887003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96634 + ... + 97569.

Almost surely, 2^90887004 is an apocalyptic number.

It is an amenable number.

90887004 is an abundant number, since it is smaller than the sum of its proper divisors (156528892).

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

90887004 is a wasteful number, since it uses less digits than its factorization.

90887004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194226 (or 194221 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 90887004 is about 9533.4675748124. The cubic root of 90887004 is about 449.6078954786.

The spelling of 90887004 in words is "ninety million, eight hundred eighty-seven thousand, four".