90161711 has 8 divisors (see below), whose sum is σ = 93117024. Its totient is φ = 87233760.

The previous prime is 90161681. The next prime is 90161723. The reversal of 90161711 is 11716109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90161711 - 2¹⁸ = 89899567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90161011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 13428.

It is an arithmetic number, because the mean of its divisors is an integer number (11639628).

Almost surely, 2^90161711 is an apocalyptic number.

90161711 is a deficient number, since it is larger than the sum of its proper divisors (2955313).

90161711 is a wasteful number, since it uses less digits than its factorization.

90161711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13681.

The product of its (nonzero) digits is 378, while the sum is 26.

The square root of 90161711 is about 9495.3520735147. The cubic root of 90161711 is about 448.4087186690.

The spelling of 90161711 in words is "ninety million, one hundred sixty-one thousand, seven hundred eleven".