90016177 has 4 divisors (see below), whose sum is σ = 90243316. Its totient is φ = 89789040.

The previous prime is 90016163. The next prime is 90016183. The reversal of 90016177 is 77161009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72743841 + 17272336 = 8529^2 + 4156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90016177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90016117) 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, 112974 + ... + 113767.

It is an arithmetic number, because the mean of its divisors is an integer number (22560829).

Almost surely, 2^90016177 is an apocalyptic number.

It is an amenable number.

90016177 is a deficient number, since it is larger than the sum of its proper divisors (227139).

90016177 is a wasteful number, since it uses less digits than its factorization.

90016177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227138.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 90016177 is about 9487.6855449577. The cubic root of 90016177 is about 448.1673233007.

The spelling of 90016177 in words is "ninety million, sixteen thousand, one hundred seventy-seven".