6396634 has 8 divisors (see below), whose sum is σ = 9854388. Its totient is φ = 3111840.

The previous prime is 6396631. The next prime is 6396659. The reversal of 6396634 is 4366936.

It can be written as a sum of positive squares in 2 ways, for example, as 5978025 + 418609 = 2445^2 + 647^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 6396593 and 6396602.

It is not an unprimeable number, because it can be changed into a prime (6396631) 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, 43147 + ... + 43294.

Almost surely, 2^6396634 is an apocalyptic number.

6396634 is a deficient number, since it is larger than the sum of its proper divisors (3457754).

6396634 is a wasteful number, since it uses less digits than its factorization.

6396634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86480.

The product of its digits is 69984, while the sum is 37.

The square root of 6396634 is about 2529.1567764771. The cubic root of 6396634 is about 185.6309984949.

It can be divided in two parts, 63966 and 34, that added together give a cube (64000 = 40³).

The spelling of 6396634 in words is "six million, three hundred ninety-six thousand, six hundred thirty-four".