343456993 has 4 divisors (see below), whose sum is σ = 374680368. Its totient is φ = 312233620.

The previous prime is 343456991. The next prime is 343457017. The reversal of 343456993 is 399654343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343456993 - 2¹ = 343456991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343456991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15611671 + ... + 15611692.

It is an arithmetic number, because the mean of its divisors is an integer number (93670092).

Almost surely, 2^343456993 is an apocalyptic number.

It is an amenable number.

343456993 is a deficient number, since it is larger than the sum of its proper divisors (31223375).

343456993 is a wasteful number, since it uses less digits than its factorization.

343456993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31223374.

The product of its digits is 1049760, while the sum is 46.

The square root of 343456993 is about 18532.5927220128. The cubic root of 343456993 is about 700.3107416281.

The spelling of 343456993 in words is "three hundred forty-three million, four hundred fifty-six thousand, nine hundred ninety-three".