6907638 has 16 divisors (see below), whose sum is σ = 13844160. Its totient is φ = 2297736.

The previous prime is 6907631. The next prime is 6907643. The reversal of 6907638 is 8367096.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6907596 and 6907605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6907631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3081 + ... + 4827.

It is an arithmetic number, because the mean of its divisors is an integer number (865260).

Almost surely, 2^6907638 is an apocalyptic number.

6907638 is an abundant number, since it is smaller than the sum of its proper divisors (6936522).

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

6907638 is a wasteful number, since it uses less digits than its factorization.

6907638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 6907638 is about 2628.2385736459. The cubic root of 6907638 is about 190.4480469510.

The spelling of 6907638 in words is "six million, nine hundred seven thousand, six hundred thirty-eight".