90608285 has 8 divisors (see below), whose sum is σ = 108781056. Its totient is φ = 72452560.

The previous prime is 90608269. The next prime is 90608291. The reversal of 90608285 is 58280609.

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

It is not a de Polignac number, because 90608285 - 2⁴ = 90608269 is a prime.

It is a super-2 number, since 2×90608285² = 16419722621282450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18440 + ... + 22830.

It is an arithmetic number, because the mean of its divisors is an integer number (13597632).

Almost surely, 2^90608285 is an apocalyptic number.

It is an amenable number.

90608285 is a deficient number, since it is larger than the sum of its proper divisors (18172771).

90608285 is a wasteful number, since it uses less digits than its factorization.

90608285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 90608285 is about 9518.8384270351. The cubic root of 90608285 is about 449.1478275749.

The spelling of 90608285 in words is "ninety million, six hundred eight thousand, two hundred eighty-five".