90855966 has 8 divisors (see below), whose sum is σ = 181711944. Its totient is φ = 30285320.

The previous prime is 90855949. The next prime is 90855977. The reversal of 90855966 is 66955809.

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

90855966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7571325 + ... + 7571336.

It is an arithmetic number, because the mean of its divisors is an integer number (22713993).

Almost surely, 2^90855966 is an apocalyptic number.

90855966 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.

90855966 is a wasteful number, since it uses less digits than its factorization.

90855966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15142666.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 90855966 is about 9531.8395916004. The cubic root of 90855966 is about 449.5567091407.

It can be divided in two parts, 9085 and 5966, that added together give a palindrome (15051).

The spelling of 90855966 in words is "ninety million, eight hundred fifty-five thousand, nine hundred sixty-six".