85583663 has 24 divisors (see below), whose sum is σ = 97675200. Its totient is φ = 74888000.

The previous prime is 85583651. The next prime is 85583677. The reversal of 85583663 is 36638558.

It is not a de Polignac number, because 85583663 - 2⁴ = 85583647 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 (85583633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574313 + ... + 574461.

It is an arithmetic number, because the mean of its divisors is an integer number (4069800).

Almost surely, 2^85583663 is an apocalyptic number.

85583663 is a deficient number, since it is larger than the sum of its proper divisors (12091537).

85583663 is a wasteful number, since it uses less digits than its factorization.

85583663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 308 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 85583663 is about 9251.1438752189. The cubic root of 85583663 is about 440.6870516236.

Adding to 85583663 its reverse (36638558), we get a palindrome (122222221).

It can be divided in two parts, 8558 and 3663, that added together give a palindrome (12221).

The spelling of 85583663 in words is "eighty-five million, five hundred eighty-three thousand, six hundred sixty-three".