90909702 has 48 divisors (see below), whose sum is σ = 219994320. Its totient is φ = 27970272.

The previous prime is 90909691. The next prime is 90909713. The reversal of 90909702 is 20790909.

It is an interprime number because it is at equal distance from previous prime (90909691) and next prime (90909713).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 877 + ... + 13512.

It is an arithmetic number, because the mean of its divisors is an integer number (4583215).

Almost surely, 2^90909702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90909702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109997160).

90909702 is an abundant number, since it is smaller than the sum of its proper divisors (129084618).

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

90909702 is a wasteful number, since it uses less digits than its factorization.

90909702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14419 (or 14407 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 90909702 is about 9534.6579382797. The cubic root of 90909702 is about 449.6453205234.

The spelling of 90909702 in words is "ninety million, nine hundred nine thousand, seven hundred two".