443947 has 4 divisors (see below), whose sum is σ = 507376. Its totient is φ = 380520.

The previous prime is 443941. The next prime is 443953. The reversal of 443947 is 749344.

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

It is an interprime number because it is at equal distance from previous prime (443941) and next prime (443953).

It is not a de Polignac number, because 443947 - 2³ = 443939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443941) 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, 31704 + ... + 31717.

It is an arithmetic number, because the mean of its divisors is an integer number (126844).

2⁴⁴³⁹⁴⁷ is an apocalyptic number.

443947 is a deficient number, since it is larger than the sum of its proper divisors (63429).

443947 is an equidigital number, since it uses as much as digits as its factorization.

443947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63428.

The product of its digits is 12096, while the sum is 31.

The square root of 443947 is about 666.2934788815. The cubic root of 443947 is about 76.2858006210.

The spelling of 443947 in words is "four hundred forty-three thousand, nine hundred forty-seven".