6361643 has 8 divisors (see below), whose sum is σ = 6706800. Its totient is φ = 6024928.

The previous prime is 6361627. The next prime is 6361651. The reversal of 6361643 is 3461636.

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

It is a cyclic number.

It is not a de Polignac number, because 6361643 - 2⁴ = 6361627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6361343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533 + ... + 3606.

It is an arithmetic number, because the mean of its divisors is an integer number (838350).

Almost surely, 2^6361643 is an apocalyptic number.

6361643 is a deficient number, since it is larger than the sum of its proper divisors (345157).

6361643 is a wasteful number, since it uses less digits than its factorization.

6361643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221.

The product of its digits is 7776, while the sum is 29.

The square root of 6361643 is about 2522.2297674875. The cubic root of 6361643 is about 185.2918985778.

The spelling of 6361643 in words is "six million, three hundred sixty-one thousand, six hundred forty-three".