90305716 has 12 divisors (see below), whose sum is σ = 159600420. Its totient is φ = 44705600.

The previous prime is 90305711. The next prime is 90305723. The reversal of 90305716 is 61750309.

It can be written as a sum of positive squares in 2 ways, for example, as 71470116 + 18835600 = 8454^2 + 4340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90305711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111361 + ... + 112168.

It is an arithmetic number, because the mean of its divisors is an integer number (13300035).

Almost surely, 2^90305716 is an apocalyptic number.

It is an amenable number.

90305716 is a deficient number, since it is larger than the sum of its proper divisors (69294704).

90305716 is a wasteful number, since it uses less digits than its factorization.

90305716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223634 (or 223632 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 90305716 is about 9502.9319686084. The cubic root of 90305716 is about 448.6473223545.

The spelling of 90305716 in words is "ninety million, three hundred five thousand, seven hundred sixteen".