355447 has 4 divisors (see below), whose sum is σ = 361336. Its totient is φ = 349560.

The previous prime is 355441. The next prime is 355457. The reversal of 355447 is 744553.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355447 is a prime.

It is a Duffinian number.

355447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355441) 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, 2853 + ... + 2974.

It is an arithmetic number, because the mean of its divisors is an integer number (90334).

2³⁵⁵⁴⁴⁷ is an apocalyptic number.

355447 is a deficient number, since it is larger than the sum of its proper divisors (5889).

355447 is an equidigital number, since it uses as much as digits as its factorization.

355447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888.

The product of its digits is 8400, while the sum is 28.

The square root of 355447 is about 596.1937604504. The cubic root of 355447 is about 70.8366940351.

The spelling of 355447 in words is "three hundred fifty-five thousand, four hundred forty-seven".