347323387 has 2 divisors, whose sum is σ = 347323388. Its totient is φ = 347323386.

The previous prime is 347323381. The next prime is 347323397. The reversal of 347323387 is 783323743.

It is a weak prime.

It is an emirp because it is prime and its reverse (783323743) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347323387 is a prime.

It is not a weakly prime, because it can be changed into another prime (347323381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173661693 + 173661694.

It is an arithmetic number, because the mean of its divisors is an integer number (173661694).

Almost surely, 2^347323387 is an apocalyptic number.

347323387 is a deficient number, since it is larger than the sum of its proper divisors (1).

347323387 is an equidigital number, since it uses as much as digits as its factorization.

347323387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 40.

The square root of 347323387 is about 18636.6141506444. The cubic root of 347323387 is about 702.9288083324.

The spelling of 347323387 in words is "three hundred forty-seven million, three hundred twenty-three thousand, three hundred eighty-seven".