438947 has 4 divisors (see below), whose sum is σ = 440880. Its totient is φ = 437016.

The previous prime is 438941. The next prime is 438953. The reversal of 438947 is 749834.

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 (438941) and next prime (438953).

It is a cyclic number.

It is not a de Polignac number, because 438947 - 2¹⁰ = 437923 is a prime.

It is a d-powerful number, because it can be written as 4² + 3¹⁰ + 9² + 8 + 4⁹ + 7⁶ .

It is an alternating number because its digits alternate between even and odd.

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 438947.

It is not an unprimeable number, because it can be changed into a prime (438941) 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, 572 + ... + 1097.

It is an arithmetic number, because the mean of its divisors is an integer number (110220).

2⁴³⁸⁹⁴⁷ is an apocalyptic number.

438947 is a deficient number, since it is larger than the sum of its proper divisors (1933).

438947 is a wasteful number, since it uses less digits than its factorization.

438947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its digits is 24192, while the sum is 35.

The square root of 438947 is about 662.5307540032. The cubic root of 438947 is about 75.9983263713.

The spelling of 438947 in words is "four hundred thirty-eight thousand, nine hundred forty-seven".