8713638 has 12 divisors (see below), whose sum is σ = 18879588. Its totient is φ = 2904540.

The previous prime is 8713631. The next prime is 8713643. The reversal of 8713638 is 8363178.

8713638 is a `hidden beast` number, since 8 + 7 + 13 + 638 = 666.

8713638 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 not an unprimeable number, because it can be changed into a prime (8713631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242028 + ... + 242063.

It is an arithmetic number, because the mean of its divisors is an integer number (1573299).

Almost surely, 2^8713638 is an apocalyptic number.

8713638 is an abundant number, since it is smaller than the sum of its proper divisors (10165950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8713638 is a wasteful number, since it uses less digits than its factorization.

8713638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484099 (or 484096 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 8713638 is about 2951.8871929666. The cubic root of 8713638 is about 205.7784245275.

The spelling of 8713638 in words is "eight million, seven hundred thirteen thousand, six hundred thirty-eight".