90387804 has 24 divisors (see below), whose sum is σ = 227128720. Its totient is φ = 27811584.

The previous prime is 90387749. The next prime is 90387811. The reversal of 90387804 is 40878309.

It is a super-2 number, since 2×90387804² = 16339910223884832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289549 + ... + 289860.

Almost surely, 2^90387804 is an apocalyptic number.

It is an amenable number.

90387804 is an abundant number, since it is smaller than the sum of its proper divisors (136740916).

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

90387804 is a wasteful number, since it uses less digits than its factorization.

90387804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579429 (or 579427 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 90387804 is about 9507.2500756002. The cubic root of 90387804 is about 448.7832214965.

The spelling of 90387804 in words is "ninety million, three hundred eighty-seven thousand, eight hundred four".