347640941 has 2 divisors, whose sum is σ = 347640942. Its totient is φ = 347640940.

The previous prime is 347640911. The next prime is 347640947. The reversal of 347640941 is 149046743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293985316 + 53655625 = 17146^2 + 7325^2 .

It is a cyclic number.

It is not a de Polignac number, because 347640941 - 2⁶ = 347640877 is a prime.

It is equal to p_18683507 and since 347640941 and 18683507 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 347640895 and 347640904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347640947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173820470 + 173820471.

It is an arithmetic number, because the mean of its divisors is an integer number (173820471).

Almost surely, 2^347640941 is an apocalyptic number.

It is an amenable number.

347640941 is a deficient number, since it is larger than the sum of its proper divisors (1).

347640941 is an equidigital number, since it uses as much as digits as its factorization.

347640941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 347640941 is about 18645.1318311242. The cubic root of 347640941 is about 703.1429698018.

The spelling of 347640941 in words is "three hundred forty-seven million, six hundred forty thousand, nine hundred forty-one".