346403 has 4 divisors (see below), whose sum is σ = 361488. Its totient is φ = 331320.

The previous prime is 346399. The next prime is 346417. The reversal of 346403 is 304643.

It is a happy number.

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 346403 - 2² = 346399 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 346403.

It is not an unprimeable number, because it can be changed into a prime (346433) 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, 7508 + ... + 7553.

It is an arithmetic number, because the mean of its divisors is an integer number (90372).

2³⁴⁶⁴⁰³ is an apocalyptic number.

346403 is a deficient number, since it is larger than the sum of its proper divisors (15085).

346403 is a wasteful number, since it uses less digits than its factorization.

346403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15084.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 346403 is about 588.5601073807. The cubic root of 346403 is about 70.2307352096.

It can be divided in two parts, 34640 and 3, that added together give a palindrome (34643).

The spelling of 346403 in words is "three hundred forty-six thousand, four hundred three".