6469643 has 4 divisors (see below), whose sum is σ = 6480528. Its totient is φ = 6458760.

The previous prime is 6469637. The next prime is 6469649. The reversal of 6469643 is 3469646.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (6469637) and next prime (6469649).

It is a cyclic number.

It is not a de Polignac number, because 6469643 - 2⁶ = 6469579 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 6469597 and 6469606.

It is not an unprimeable number, because it can be changed into a prime (6469649) 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, 4496 + ... + 5757.

It is an arithmetic number, because the mean of its divisors is an integer number (1620132).

Almost surely, 2^6469643 is an apocalyptic number.

6469643 is a deficient number, since it is larger than the sum of its proper divisors (10885).

6469643 is a wasteful number, since it uses less digits than its factorization.

6469643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10884.

The product of its digits is 93312, while the sum is 38.

The square root of 6469643 is about 2543.5492918361. The cubic root of 6469643 is about 186.3345714448.

The spelling of 6469643 in words is "six million, four hundred sixty-nine thousand, six hundred forty-three".