354643943 has 2 divisors, whose sum is σ = 354643944. Its totient is φ = 354643942.

The previous prime is 354643901. The next prime is 354643963. The reversal of 354643943 is 349346453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354643943 - 2⁸ = 354643687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354643943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354643963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177321971 + 177321972.

It is an arithmetic number, because the mean of its divisors is an integer number (177321972).

Almost surely, 2^354643943 is an apocalyptic number.

354643943 is a deficient number, since it is larger than the sum of its proper divisors (1).

354643943 is an equidigital number, since it uses as much as digits as its factorization.

354643943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 41.

The square root of 354643943 is about 18831.9925392933. The cubic root of 354643943 is about 707.8330698780.

The spelling of 354643943 in words is "three hundred fifty-four million, six hundred forty-three thousand, nine hundred forty-three".