347161949 has 2 divisors, whose sum is σ = 347161950. Its totient is φ = 347161948.

The previous prime is 347161937. The next prime is 347161951. The reversal of 347161949 is 949161743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344659225 + 2502724 = 18565^2 + 1582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347161949 is a prime.

Together with 347161951, 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 (347161909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173580974 + 173580975.

It is an arithmetic number, because the mean of its divisors is an integer number (173580975).

Almost surely, 2^347161949 is an apocalyptic number.

It is an amenable number.

347161949 is a deficient number, since it is larger than the sum of its proper divisors (1).

347161949 is an equidigital number, since it uses as much as digits as its factorization.

347161949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 347161949 is about 18632.2824420413. The cubic root of 347161949 is about 702.8198829411.

The spelling of 347161949 in words is "three hundred forty-seven million, one hundred sixty-one thousand, nine hundred forty-nine".