346407 has 4 divisors (see below), whose sum is σ = 461880. Its totient is φ = 230936.

The previous prime is 346399. The next prime is 346417. The reversal of 346407 is 704643.

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 346407 - 2³ = 346399 is a prime.

It is a D-number.

It is a plaindrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 346407.

It is not an unprimeable number, because it can be changed into a prime (346417) 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, 57732 + ... + 57737.

It is an arithmetic number, because the mean of its divisors is an integer number (115470).

2³⁴⁶⁴⁰⁷ is an apocalyptic number.

346407 is a deficient number, since it is larger than the sum of its proper divisors (115473).

346407 is a wasteful number, since it uses less digits than its factorization.

346407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115472.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 346407 is about 588.5635054945. The cubic root of 346407 is about 70.2310055324.

It can be divided in two parts, 34 and 6407, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 346407 in words is "three hundred forty-six thousand, four hundred seven".