90606 has 8 divisors (see below), whose sum is σ = 181224. Its totient is φ = 30200.

The previous prime is 90599. The next prime is 90617. The reversal of 90606 is 60609.

90606 = 149² + 150² + ... + 152².

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

90606 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

90606 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7545 + ... + 7556.

It is an arithmetic number, because the mean of its divisors is an integer number (22653).

2⁹⁰⁶⁰⁶ is an apocalyptic number.

90606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90612).

90606 is a wasteful number, since it uses less digits than its factorization.

90606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15106.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 90606 is about 301.0083055333. The cubic root of 90606 is about 44.9144051940.

It can be divided in two parts, 90 and 606, that added together give a palindrome (696).

The spelling of 90606 in words is "ninety thousand, six hundred six".