6345634 has 4 divisors (see below), whose sum is σ = 9518454. Its totient is φ = 3172816.

The previous prime is 6345629. The next prime is 6345659. The reversal of 6345634 is 4365436.

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

It can be written as a sum of positive squares in only one way, i.e., 5508409 + 837225 = 2347^2 + 915^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6345596 and 6345605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586407 + ... + 1586410.

Almost surely, 2^6345634 is an apocalyptic number.

6345634 is a deficient number, since it is larger than the sum of its proper divisors (3172820).

6345634 is a wasteful number, since it uses less digits than its factorization.

6345634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172819.

The product of its digits is 25920, while the sum is 31.

The square root of 6345634 is about 2519.0541875871. The cubic root of 6345634 is about 185.1363397208.

The spelling of 6345634 in words is "six million, three hundred forty-five thousand, six hundred thirty-four".