6389902 has 4 divisors (see below), whose sum is σ = 9584856. Its totient is φ = 3194950.

The previous prime is 6389899. The next prime is 6389917. The reversal of 6389902 is 2099836.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1597474 + ... + 1597477.

It is an arithmetic number, because the mean of its divisors is an integer number (2396214).

Almost surely, 2^6389902 is an apocalyptic number.

6389902 is a deficient number, since it is larger than the sum of its proper divisors (3194954).

6389902 is a wasteful number, since it uses less digits than its factorization.

6389902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194953.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 6389902 is about 2527.8255477782. The cubic root of 6389902 is about 185.5658545179.

The spelling of 6389902 in words is "six million, three hundred eighty-nine thousand, nine hundred two".