6389961 has 8 divisors (see below), whose sum is σ = 8540064. Its totient is φ = 4249920.

The previous prime is 6389959. The next prime is 6389963. The reversal of 6389961 is 1699836.

It is an interprime number because it is at equal distance from previous prime (6389959) and next prime (6389963).

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

It is not a de Polignac number, because 6389961 - 2¹ = 6389959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6389963) 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, 880 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (1067508).

Almost surely, 2^6389961 is an apocalyptic number.

It is an amenable number.

6389961 is a deficient number, since it is larger than the sum of its proper divisors (2150103).

6389961 is a wasteful number, since it uses less digits than its factorization.

6389961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031.

The product of its digits is 69984, while the sum is 42.

The square root of 6389961 is about 2527.8372178604. The cubic root of 6389961 is about 185.5664256457.

The spelling of 6389961 in words is "six million, three hundred eighty-nine thousand, nine hundred sixty-one".