90611 has 6 divisors (see below), whose sum is σ = 96012. Its totient is φ = 85500.

The previous prime is 90599. The next prime is 90617. The reversal of 90611 is 11609.

90611 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 90611 - 2⁶ = 90547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90611.

It is not an unprimeable number, because it can be changed into a prime (90617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 236 + ... + 486.

It is an arithmetic number, because the mean of its divisors is an integer number (16002).

2⁹⁰⁶¹¹ is an apocalyptic number.

90611 is a deficient number, since it is larger than the sum of its proper divisors (5401).

90611 is a wasteful number, since it uses less digits than its factorization.

90611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 90611 is about 301.0166108373. The cubic root of 90611 is about 44.9152313641.

The spelling of 90611 in words is "ninety thousand, six hundred eleven".