90866284 has 48 divisors (see below), whose sum is σ = 176198400. Its totient is φ = 40810176.

The previous prime is 90866257. The next prime is 90866287. The reversal of 90866284 is 48266809.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 90866284.

It is not an unprimeable number, because it can be changed into a prime (90866287) 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, 396682 + ... + 396910.

It is an arithmetic number, because the mean of its divisors is an integer number (3670800).

Almost surely, 2^90866284 is an apocalyptic number.

It is an amenable number.

90866284 is a deficient number, since it is larger than the sum of its proper divisors (85332116).

90866284 is a wasteful number, since it uses less digits than its factorization.

90866284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 90866284 is about 9532.3808148856. The cubic root of 90866284 is about 449.5737263704.

The spelling of 90866284 in words is "ninety million, eight hundred sixty-six thousand, two hundred eighty-four".