90690016 has 12 divisors (see below), whose sum is σ = 178546032. Its totient is φ = 45344992.

The previous prime is 90690011. The next prime is 90690029. The reversal of 90690016 is 61009609.

It is a self number, because there is not a number n which added to its sum of digits gives 90690016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90690011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1417000 + ... + 1417063.

It is an arithmetic number, because the mean of its divisors is an integer number (14878836).

Almost surely, 2^90690016 is an apocalyptic number.

It is an amenable number.

90690016 is a deficient number, since it is larger than the sum of its proper divisors (87856016).

90690016 is a wasteful number, since it uses less digits than its factorization.

90690016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834073 (or 2834065 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 90690016 is about 9523.1305777040. The cubic root of 90690016 is about 449.2828346148.

The spelling of 90690016 in words is "ninety million, six hundred ninety thousand, sixteen".