90945016 has 16 divisors (see below), whose sum is σ = 170755200. Its totient is φ = 45410304.

The previous prime is 90944947. The next prime is 90945017. The reversal of 90945016 is 61054909.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90945017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240 + ... + 13543.

It is an arithmetic number, because the mean of its divisors is an integer number (10672200).

Almost surely, 2^90945016 is an apocalyptic number.

It is an amenable number.

90945016 is a deficient number, since it is larger than the sum of its proper divisors (79810184).

90945016 is a wasteful number, since it uses less digits than its factorization.

90945016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15558 (or 15554 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 90945016 is about 9536.5096340328. The cubic root of 90945016 is about 449.7035347693.

Subtracting from 90945016 its product of nonzero digits (9720), we obtain a square (90935296 = 9536²).

The spelling of 90945016 in words is "ninety million, nine hundred forty-five thousand, sixteen".