90584890 has 16 divisors (see below), whose sum is σ = 177876000. Its totient is φ = 32939920.

The previous prime is 90584881. The next prime is 90584903. The reversal of 90584890 is 9848509.

It is a happy number.

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, 411640 + ... + 411859.

It is an arithmetic number, because the mean of its divisors is an integer number (11117250).

Almost surely, 2^90584890 is an apocalyptic number.

90584890 is a deficient number, since it is larger than the sum of its proper divisors (87291110).

90584890 is a wasteful number, since it uses less digits than its factorization.

90584890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823517.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 90584890 is about 9517.6094687689. The cubic root of 90584890 is about 449.1091676888.

The spelling of 90584890 in words is "ninety million, five hundred eighty-four thousand, eight hundred ninety".