350843993 has 2 divisors, whose sum is σ = 350843994. Its totient is φ = 350843992.

The previous prime is 350843989. The next prime is 350844007. The reversal of 350843993 is 399348053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271491529 + 79352464 = 16477^2 + 8908^2 .

It is a cyclic number.

It is not a de Polignac number, because 350843993 - 2² = 350843989 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (350843903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175421996 + 175421997.

It is an arithmetic number, because the mean of its divisors is an integer number (175421997).

Almost surely, 2^350843993 is an apocalyptic number.

It is an amenable number.

350843993 is a deficient number, since it is larger than the sum of its proper divisors (1).

350843993 is an equidigital number, since it uses as much as digits as its factorization.

350843993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 350843993 is about 18730.8300136433. The cubic root of 350843993 is about 705.2958823758.

The spelling of 350843993 in words is "three hundred fifty million, eight hundred forty-three thousand, nine hundred ninety-three".