6345646 has 4 divisors (see below), whose sum is σ = 9518472. Its totient is φ = 3172822.

The previous prime is 6345629. The next prime is 6345659. The reversal of 6345646 is 6465436.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1586410 + ... + 1586413.

It is an arithmetic number, because the mean of its divisors is an integer number (2379618).

Almost surely, 2^6345646 is an apocalyptic number.

6345646 is a deficient number, since it is larger than the sum of its proper divisors (3172826).

6345646 is a wasteful number, since it uses less digits than its factorization.

6345646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172825.

The product of its digits is 51840, while the sum is 34.

The square root of 6345646 is about 2519.0565694323. The cubic root of 6345646 is about 185.1364564223.

The spelling of 6345646 in words is "six million, three hundred forty-five thousand, six hundred forty-six".