347864087 has 2 divisors, whose sum is σ = 347864088. Its totient is φ = 347864086.

The previous prime is 347864057. The next prime is 347864089. The reversal of 347864087 is 780468743.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347864087 is a prime.

Together with 347864089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347864089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173932043 + 173932044.

It is an arithmetic number, because the mean of its divisors is an integer number (173932044).

Almost surely, 2^347864087 is an apocalyptic number.

347864087 is a deficient number, since it is larger than the sum of its proper divisors (1).

347864087 is an equidigital number, since it uses as much as digits as its factorization.

347864087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 347864087 is about 18651.1148996514. The cubic root of 347864087 is about 703.2933835987.

The spelling of 347864087 in words is "three hundred forty-seven million, eight hundred sixty-four thousand, eighty-seven".