8635493 has 4 divisors (see below), whose sum is σ = 8643360. Its totient is φ = 8627628.

The previous prime is 8635477. The next prime is 8635513. The reversal of 8635493 is 3945368.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8635493 - 2⁴ = 8635477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8635423) 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, 1955 + ... + 4592.

It is an arithmetic number, because the mean of its divisors is an integer number (2160840).

Almost surely, 2^8635493 is an apocalyptic number.

It is an amenable number.

8635493 is a deficient number, since it is larger than the sum of its proper divisors (7867).

8635493 is a wasteful number, since it uses less digits than its factorization.

8635493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7866.

The product of its digits is 77760, while the sum is 38.

The square root of 8635493 is about 2938.6209350646. The cubic root of 8635493 is about 205.1614274806.

The spelling of 8635493 in words is "eight million, six hundred thirty-five thousand, four hundred ninety-three".