90655744 has 44 divisors (see below), whose sum is σ = 182494144. Its totient is φ = 45010944.

The previous prime is 90655727. The next prime is 90655751. The reversal of 90655744 is 44755609.

It is a junction number, because it is equal to n+sod(n) for n = 90655697 and 90655706.

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, 228154 + ... + 228550.

Almost surely, 2^90655744 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 90655744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91247072).

90655744 is an abundant number, since it is smaller than the sum of its proper divisors (91838400).

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

90655744 is a wasteful number, since it uses less digits than its factorization.

90655744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 90655744 is about 9521.3309993929. The cubic root of 90655744 is about 449.2262324219.

The spelling of 90655744 in words is "ninety million, six hundred fifty-five thousand, seven hundred forty-four".