90437802 has 64 divisors (see below), whose sum is σ = 225765120. Its totient is φ = 23514624.

The previous prime is 90437801. The next prime is 90437803. The reversal of 90437802 is 20873409.

It is an interprime number because it is at equal distance from previous prime (90437801) and next prime (90437803).

It is not an unprimeable number, because it can be changed into a prime (90437801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38724 + ... + 40992.

It is an arithmetic number, because the mean of its divisors is an integer number (3527580).

Almost surely, 2^90437802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90437802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112882560).

90437802 is an abundant number, since it is smaller than the sum of its proper divisors (135327318).

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

90437802 is a wasteful number, since it uses less digits than its factorization.

90437802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 90437802 is about 9509.8791790432. The cubic root of 90437802 is about 448.8659543673.

The spelling of 90437802 in words is "ninety million, four hundred thirty-seven thousand, eight hundred two".