6345655 has 4 divisors (see below), whose sum is σ = 7614792. Its totient is φ = 5076520.

The previous prime is 6345629. The next prime is 6345659. The reversal of 6345655 is 5565436.

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

It is not a de Polignac number, because 6345655 - 2¹⁹ = 5821367 is a prime.

It is a Duffinian number.

6345655 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6345655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634561 + ... + 634570.

It is an arithmetic number, because the mean of its divisors is an integer number (1903698).

Almost surely, 2^6345655 is an apocalyptic number.

6345655 is a deficient number, since it is larger than the sum of its proper divisors (1269137).

6345655 is a wasteful number, since it uses less digits than its factorization.

6345655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269136.

The product of its digits is 54000, while the sum is 34.

The square root of 6345655 is about 2519.0583558147. The cubic root of 6345655 is about 185.1365439483.

The spelling of 6345655 in words is "six million, three hundred forty-five thousand, six hundred fifty-five".