8638072 has 16 divisors (see below), whose sum is σ = 16471800. Its totient is φ = 4245600.

The previous prime is 8638067. The next prime is 8638117. The reversal of 8638072 is 2708368.

It is a happy number.

8638072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8679 + ... + 9622.

Almost surely, 2^8638072 is an apocalyptic number.

It is an amenable number.

8638072 is a deficient number, since it is larger than the sum of its proper divisors (7833728).

8638072 is a wasteful number, since it uses less digits than its factorization.

8638072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18366 (or 18362 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 8638072 is about 2939.0597135819. The cubic root of 8638072 is about 205.1818493471.

The spelling of 8638072 in words is "eight million, six hundred thirty-eight thousand, seventy-two".