90821466 has 16 divisors (see below), whose sum is σ = 201825600. Its totient is φ = 30273804.

The previous prime is 90821453. The next prime is 90821477. The reversal of 90821466 is 66412809.

It is a self number, because there is not a number n which added to its sum of digits gives 90821466.

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, 840886 + ... + 840993.

It is an arithmetic number, because the mean of its divisors is an integer number (12614100).

Almost surely, 2^90821466 is an apocalyptic number.

90821466 is an abundant number, since it is smaller than the sum of its proper divisors (111004134).

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

90821466 is a wasteful number, since it uses less digits than its factorization.

90821466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681890 (or 1681884 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90821466 is about 9530.0296956515. The cubic root of 90821466 is about 449.4997997609.

The spelling of 90821466 in words is "ninety million, eight hundred twenty-one thousand, four hundred sixty-six".