6394937 has 4 divisors (see below), whose sum is σ = 6418980. Its totient is φ = 6370896.

The previous prime is 6394933. The next prime is 6394957. The reversal of 6394937 is 7394936.

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

It can be written as a sum of positive squares in 2 ways, for example, as 900601 + 5494336 = 949^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 6394937 - 2² = 6394933 is a prime.

It is a d-powerful number, because it can be written as 6² + 3¹³ + 9 + 4³ + 9³ + 3¹⁴ + 7⁵ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6394894 and 6394903.

It is not an unprimeable number, because it can be changed into a prime (6394933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11618 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (1604745).

Almost surely, 2^6394937 is an apocalyptic number.

It is an amenable number.

6394937 is a deficient number, since it is larger than the sum of its proper divisors (24043).

6394937 is a wasteful number, since it uses less digits than its factorization.

6394937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24042.

The product of its digits is 122472, while the sum is 41.

The square root of 6394937 is about 2528.8212669147. The cubic root of 6394937 is about 185.6145813362.

Subtracting 6394937 from its reverse (7394936), we obtain a palindrome (999999).

The spelling of 6394937 in words is "six million, three hundred ninety-four thousand, nine hundred thirty-seven".