90825666 has 32 divisors (see below), whose sum is σ = 191351808. Its totient is φ = 28683600.

The previous prime is 90825661. The next prime is 90825673. The reversal of 90825666 is 66652809.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90825661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11691 + ... + 17841.

It is an arithmetic number, because the mean of its divisors is an integer number (5979744).

Almost surely, 2^90825666 is an apocalyptic number.

90825666 is an abundant number, since it is smaller than the sum of its proper divisors (100526142).

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

90825666 is a wasteful number, since it uses less digits than its factorization.

90825666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 90825666 is about 9530.2500491855. The cubic root of 90825666 is about 449.5067286297.

The spelling of 90825666 in words is "ninety million, eight hundred twenty-five thousand, six hundred sixty-six".