347923871 has 2 divisors, whose sum is σ = 347923872. Its totient is φ = 347923870.

The previous prime is 347923861. The next prime is 347923883. The reversal of 347923871 is 178329743.

It is a weak prime.

It is an emirp because it is prime and its reverse (178329743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 347923871 - 2²² = 343729567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347923861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173961935 + 173961936.

It is an arithmetic number, because the mean of its divisors is an integer number (173961936).

Almost surely, 2^347923871 is an apocalyptic number.

347923871 is a deficient number, since it is larger than the sum of its proper divisors (1).

347923871 is an equidigital number, since it uses as much as digits as its factorization.

347923871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 347923871 is about 18652.7175231922. The cubic root of 347923871 is about 703.3336706771. Note that the first 3 decimals are identical.

The spelling of 347923871 in words is "three hundred forty-seven million, nine hundred twenty-three thousand, eight hundred seventy-one".