90061794 has 40 divisors (see below), whose sum is σ = 203147868. Its totient is φ = 29820960.

The previous prime is 90061759. The next prime is 90061819. The reversal of 90061794 is 49716009.

It can be written as a sum of positive squares in 2 ways, for example, as 88115769 + 1946025 = 9387^2 + 1395^2 .

It is a super-2 number, since 2×90061794² = 16222253476996872, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23664 + ... + 27204.

Almost surely, 2^90061794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90061794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101573934).

90061794 is an abundant number, since it is smaller than the sum of its proper divisors (113086074).

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

90061794 is a wasteful number, since it uses less digits than its factorization.

90061794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 90061794 is about 9490.0892514244. The cubic root of 90061794 is about 448.2430156077.

The spelling of 90061794 in words is "ninety million, sixty-one thousand, seven hundred ninety-four".