347631643 has 4 divisors (see below), whose sum is σ = 347694808. Its totient is φ = 347568480.

The previous prime is 347631617. The next prime is 347631689. The reversal of 347631643 is 346136743.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347631643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347631043) 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, 22446 + ... + 34627.

It is an arithmetic number, because the mean of its divisors is an integer number (86923702).

Almost surely, 2^347631643 is an apocalyptic number.

347631643 is a deficient number, since it is larger than the sum of its proper divisors (63165).

347631643 is an equidigital number, since it uses as much as digits as its factorization.

347631643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63164.

The product of its digits is 108864, while the sum is 37.

The square root of 347631643 is about 18644.8824882325. The cubic root of 347631643 is about 703.1367009951.

The spelling of 347631643 in words is "three hundred forty-seven million, six hundred thirty-one thousand, six hundred forty-three".