90714990 has 64 divisors (see below), whose sum is σ = 234565632. Its totient is φ = 22387200.

The previous prime is 90714977. The next prime is 90714997. The reversal of 90714990 is 9941709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90714997) 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, 19270 + ... + 23510.

It is an arithmetic number, because the mean of its divisors is an integer number (3665088).

Almost surely, 2^90714990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90714990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117282816).

90714990 is an abundant number, since it is smaller than the sum of its proper divisors (143850642).

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

90714990 is a wasteful number, since it uses less digits than its factorization.

90714990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 90714990 is about 9524.4417159223. The cubic root of 90714990 is about 449.3240716411.

The spelling of 90714990 in words is "ninety million, seven hundred fourteen thousand, nine hundred ninety".