343473663 has 16 divisors (see below), whose sum is σ = 493746176. Its totient is φ = 211131360.

The previous prime is 343473653. The next prime is 343473673. The reversal of 343473663 is 366374343.

It is an interprime number because it is at equal distance from previous prime (343473653) and next prime (343473673).

It is not a de Polignac number, because 343473663 - 2⁵ = 343473631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343473623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34206 + ... + 43092.

It is an arithmetic number, because the mean of its divisors is an integer number (30859136).

Almost surely, 2^343473663 is an apocalyptic number.

343473663 is a deficient number, since it is larger than the sum of its proper divisors (150272513).

343473663 is a wasteful number, since it uses less digits than its factorization.

343473663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9894.

The product of its digits is 326592, while the sum is 39.

The square root of 343473663 is about 18533.0424647439. The cubic root of 343473663 is about 700.3220715194.

The spelling of 343473663 in words is "three hundred forty-three million, four hundred seventy-three thousand, six hundred sixty-three".