90037500 has 180 divisors, whose sum is σ = 306339768. Its totient is φ = 20580000.

The previous prime is 90037499. The next prime is 90037501. The reversal of 90037500 is 573009.

It is an interprime number because it is at equal distance from previous prime (90037499) and next prime (90037501).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90037501) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 12862497 + ... + 12862503.

Almost surely, 2^90037500 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 90037500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153169884).

90037500 is an abundant number, since it is smaller than the sum of its proper divisors (216302268).

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

90037500 is an frugal number, since it uses more digits than its factorization.

90037500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 90037500 is about 9488.8091982082. The cubic root of 90037500 is about 448.2027077456.

The spelling of 90037500 in words is "ninety million, thirty-seven thousand, five hundred".