90667563 has 32 divisors (see below), whose sum is σ = 146227200. Its totient is φ = 48815136.

The previous prime is 90667561. The next prime is 90667571. The reversal of 90667563 is 36576609.

It is not a de Polignac number, because 90667563 - 2¹ = 90667561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90667561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88468 + ... + 89486.

It is an arithmetic number, because the mean of its divisors is an integer number (4569600).

Almost surely, 2^90667563 is an apocalyptic number.

90667563 is a deficient number, since it is larger than the sum of its proper divisors (55559637).

90667563 is a wasteful number, since it uses less digits than its factorization.

90667563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 90667563 is about 9521.9516381885. The cubic root of 90667563 is about 449.2457537962.

The spelling of 90667563 in words is "ninety million, six hundred sixty-seven thousand, five hundred sixty-three".