343272403 has 4 divisors (see below), whose sum is σ = 343324728. Its totient is φ = 343220080.

The previous prime is 343272359. The next prime is 343272407. The reversal of 343272403 is 304272343.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 343272403 - 2¹³ = 343264211 is a prime.

It is a super-2 number, since 2×343272403² = 235671885322788818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343272407) 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, 14626 + ... + 30007.

It is an arithmetic number, because the mean of its divisors is an integer number (85831182).

Almost surely, 2^343272403 is an apocalyptic number.

343272403 is a deficient number, since it is larger than the sum of its proper divisors (52325).

343272403 is an equidigital number, since it uses as much as digits as its factorization.

343272403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52324.

The product of its (nonzero) digits is 12096, while the sum is 28.

The square root of 343272403 is about 18527.6119076367. The cubic root of 343272403 is about 700.1852591290.

The spelling of 343272403 in words is "three hundred forty-three million, two hundred seventy-two thousand, four hundred three".