6388902 has 64 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 1858464.

The previous prime is 6388891. The next prime is 6388909. The reversal of 6388902 is 2098836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6388909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13099 + ... + 13577.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

Almost surely, 2^6388902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6388902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8064000).

6388902 is an abundant number, since it is smaller than the sum of its proper divisors (9739098).

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

6388902 is a wasteful number, since it uses less digits than its factorization.

6388902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 6388902 is about 2527.6277415790. The cubic root of 6388902 is about 185.5561738512.

The spelling of 6388902 in words is "six million, three hundred eighty-eight thousand, nine hundred two".