90469663 has 4 divisors (see below), whose sum is σ = 90497968. Its totient is φ = 90441360.

The previous prime is 90469637. The next prime is 90469667. The reversal of 90469663 is 36696409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36696409 = 137 ⋅267857.

It is a cyclic number.

It is not a de Polignac number, because 90469663 - 2²⁵ = 56915231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90469667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8643 + ... + 15988.

It is an arithmetic number, because the mean of its divisors is an integer number (22624492).

Almost surely, 2^90469663 is an apocalyptic number.

90469663 is a deficient number, since it is larger than the sum of its proper divisors (28305).

90469663 is a wasteful number, since it uses less digits than its factorization.

90469663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28304.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 90469663 is about 9511.5541842540. The cubic root of 90469663 is about 448.9186596105.

The spelling of 90469663 in words is "ninety million, four hundred sixty-nine thousand, six hundred sixty-three".