343661799 has 16 divisors (see below), whose sum is σ = 494480000. Its totient is φ = 211048416.

The previous prime is 343661789. The next prime is 343661831. The reversal of 343661799 is 997166343.

It is not a de Polignac number, because 343661799 - 2⁷ = 343661671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343661779) 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 15 ways as a sum of consecutive naturals, for example, 10632 + ... + 28290.

It is an arithmetic number, because the mean of its divisors is an integer number (30905000).

Almost surely, 2^343661799 is an apocalyptic number.

343661799 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

343661799 is a deficient number, since it is larger than the sum of its proper divisors (150818201).

343661799 is a wasteful number, since it uses less digits than its factorization.

343661799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18174.

The product of its digits is 734832, while the sum is 48.

The square root of 343661799 is about 18538.1174610584. The cubic root of 343661799 is about 700.4499141640.

The spelling of 343661799 in words is "three hundred forty-three million, six hundred sixty-one thousand, seven hundred ninety-nine".