347669 has 4 divisors (see below), whose sum is σ = 397344. Its totient is φ = 297996.

The previous prime is 347651. The next prime is 347671. The reversal of 347669 is 966743.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347669 is a prime.

It is a super-2 number, since 2×347669² = 241747467122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 347669.

It is not an unprimeable number, because it can be changed into a prime (347609) 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, 24827 + ... + 24840.

It is an arithmetic number, because the mean of its divisors is an integer number (99336).

2³⁴⁷⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

347669 is a deficient number, since it is larger than the sum of its proper divisors (49675).

347669 is an equidigital number, since it uses as much as digits as its factorization.

347669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49674.

The product of its digits is 27216, while the sum is 35.

The square root of 347669 is about 589.6346326328. The cubic root of 347669 is about 70.3161886789.

The spelling of 347669 in words is "three hundred forty-seven thousand, six hundred sixty-nine".