90566814 has 16 divisors (see below), whose sum is σ = 195067152. Its totient is φ = 27866688.

The previous prime is 90566813. The next prime is 90566821. The reversal of 90566814 is 41866509.

It is a super-2 number, since 2×90566814² = 16404695596221192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90566813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580479 + ... + 580634.

It is an arithmetic number, because the mean of its divisors is an integer number (12191697).

Almost surely, 2^90566814 is an apocalyptic number.

90566814 is an abundant number, since it is smaller than the sum of its proper divisors (104500338).

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

90566814 is a wasteful number, since it uses less digits than its factorization.

90566814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161131.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 90566814 is about 9516.6598131908. The cubic root of 90566814 is about 449.0792928118.

The spelling of 90566814 in words is "ninety million, five hundred sixty-six thousand, eight hundred fourteen".