6389995 has 8 divisors (see below), whose sum is σ = 7798320. Its totient is φ = 5025120.

The previous prime is 6389993. The next prime is 6390001. The reversal of 6389995 is 5999836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6389995 - 2¹ = 6389993 is a prime.

It is a super-2 number, since 2×6389995² = 81664072200050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6389993) 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, 10536 + ... + 11125.

It is an arithmetic number, because the mean of its divisors is an integer number (974790).

Almost surely, 2^6389995 is an apocalyptic number.

6389995 is a deficient number, since it is larger than the sum of its proper divisors (1408325).

6389995 is a wasteful number, since it uses less digits than its factorization.

6389995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21725.

The product of its digits is 524880, while the sum is 49.

The square root of 6389995 is about 2527.8439429680. The cubic root of 6389995 is about 185.5667547686.

The spelling of 6389995 in words is "six million, three hundred eighty-nine thousand, nine hundred ninety-five".