343893993 has 8 divisors (see below), whose sum is σ = 460444800. Its totient is φ = 228302928.

The previous prime is 343893989. The next prime is 343893997. The reversal of 343893993 is 399398343.

It is an interprime number because it is at equal distance from previous prime (343893989) and next prime (343893997).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 343893993 - 2² = 343893989 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343893997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239098 + ... + 240531.

It is an arithmetic number, because the mean of its divisors is an integer number (57555600).

Almost surely, 2^343893993 is an apocalyptic number.

It is an amenable number.

343893993 is a deficient number, since it is larger than the sum of its proper divisors (116550807).

343893993 is a wasteful number, since it uses less digits than its factorization.

343893993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479871.

The product of its digits is 1889568, while the sum is 51.

The square root of 343893993 is about 18544.3790135987. The cubic root of 343893993 is about 700.6076309003.

The spelling of 343893993 in words is "three hundred forty-three million, eight hundred ninety-three thousand, nine hundred ninety-three".