90889746 has 8 divisors (see below), whose sum is σ = 181779504. Its totient is φ = 30296580.

The previous prime is 90889739. The next prime is 90889763. The reversal of 90889746 is 64798809.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

90889746 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7574140 + ... + 7574151.

It is an arithmetic number, because the mean of its divisors is an integer number (22722438).

Almost surely, 2^90889746 is an apocalyptic number.

90889746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90889746 is a wasteful number, since it uses less digits than its factorization.

90889746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15148296.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 90889746 is about 9533.6113828916. The cubic root of 90889746 is about 449.6124168894.

The spelling of 90889746 in words is "ninety million, eight hundred eighty-nine thousand, seven hundred forty-six".