90867585 has 16 divisors (see below), whose sum is σ = 150402240. Its totient is φ = 46791360.

The previous prime is 90867571. The next prime is 90867587. The reversal of 90867585 is 58576809.

It is not a de Polignac number, because 90867585 - 2¹³ = 90859393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90867587) 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, 104011 + ... + 104880.

It is an arithmetic number, because the mean of its divisors is an integer number (9400140).

Almost surely, 2^90867585 is an apocalyptic number.

It is an amenable number.

90867585 is a deficient number, since it is larger than the sum of its proper divisors (59534655).

90867585 is a wasteful number, since it uses less digits than its factorization.

90867585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208928.

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 90867585 is about 9532.4490557254. The cubic root of 90867585 is about 449.5758719870.

The spelling of 90867585 in words is "ninety million, eight hundred sixty-seven thousand, five hundred eighty-five".