347959873 has 2 divisors, whose sum is σ = 347959874. Its totient is φ = 347959872.

The previous prime is 347959867. The next prime is 347959879. The reversal of 347959873 is 378959743.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (347959867) and next prime (347959879).

It can be written as a sum of positive squares in only one way, i.e., 236298384 + 111661489 = 15372^2 + 10567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347959873 is a prime.

It is a super-2 number, since 2×347959873² = 242152146436352258, which contains 22 as substring.

It is equal to p_18699679 and since 347959873 and 18699679 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (347959879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173979936 + 173979937.

It is an arithmetic number, because the mean of its divisors is an integer number (173979937).

Almost surely, 2^347959873 is an apocalyptic number.

It is an amenable number.

347959873 is a deficient number, since it is larger than the sum of its proper divisors (1).

347959873 is an equidigital number, since it uses as much as digits as its factorization.

347959873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 55.

The square root of 347959873 is about 18653.6825586799. The cubic root of 347959873 is about 703.3579293800.

The spelling of 347959873 in words is "three hundred forty-seven million, nine hundred fifty-nine thousand, eight hundred seventy-three".