347091947 has 4 divisors (see below), whose sum is σ = 347130576. Its totient is φ = 347053320.

The previous prime is 347091893. The next prime is 347091961. The reversal of 347091947 is 749190743.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 347091947 - 2¹⁶ = 347026411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 347091898 and 347091907.

It is not an unprimeable number, because it can be changed into a prime (347091977) 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, 2018 + ... + 26424.

It is an arithmetic number, because the mean of its divisors is an integer number (86782644).

Almost surely, 2^347091947 is an apocalyptic number.

347091947 is a deficient number, since it is larger than the sum of its proper divisors (38629).

347091947 is a wasteful number, since it uses less digits than its factorization.

347091947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38628.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 347091947 is about 18630.4038335190. The cubic root of 347091947 is about 702.7726407200.

The spelling of 347091947 in words is "three hundred forty-seven million, ninety-one thousand, nine hundred forty-seven".