8638456 has 16 divisors (see below), whose sum is σ = 16230600. Its totient is φ = 4310304.

The previous prime is 8638453. The next prime is 8638457. The reversal of 8638456 is 6548368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8638451) 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, 4911 + ... + 6433.

Almost surely, 2^8638456 is an apocalyptic number.

It is an amenable number.

8638456 is a deficient number, since it is larger than the sum of its proper divisors (7592144).

8638456 is a wasteful number, since it uses less digits than its factorization.

8638456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2234 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 8638456 is about 2939.1250398716. The cubic root of 8638456 is about 205.1848897116.

The spelling of 8638456 in words is "eight million, six hundred thirty-eight thousand, four hundred fifty-six".