90073088 has 96 divisors (see below), whose sum is σ = 211236480. Its totient is φ = 37601280.

The previous prime is 90073079. The next prime is 90073097. The reversal of 90073088 is 88037009.

It is an interprime number because it is at equal distance from previous prime (90073079) and next prime (90073097).

It is a super-2 number, since 2×90073088² = 16226322363711488, which contains 22 as substring.

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, 874445 + ... + 874547.

It is an arithmetic number, because the mean of its divisors is an integer number (2200380).

Almost surely, 2^90073088 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 90073088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105618240).

90073088 is an abundant number, since it is smaller than the sum of its proper divisors (121163392).

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

90073088 is a wasteful number, since it uses less digits than its factorization.

90073088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 90073088 is about 9490.6842745926. The cubic root of 90073088 is about 448.2617517991.

The spelling of 90073088 in words is "ninety million, seventy-three thousand, eighty-eight".