8438971 has 4 divisors (see below), whose sum is σ = 8730000. Its totient is φ = 8147944.

The previous prime is 8438959. The next prime is 8438977. The reversal of 8438971 is 1798348.

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 8438971 - 2⁹ = 8438459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8438977) 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, 145471 + ... + 145528.

It is an arithmetic number, because the mean of its divisors is an integer number (2182500).

Almost surely, 2^8438971 is an apocalyptic number.

8438971 is a deficient number, since it is larger than the sum of its proper divisors (291029).

8438971 is a wasteful number, since it uses less digits than its factorization.

8438971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291028.

The product of its digits is 48384, while the sum is 40.

The square root of 8438971 is about 2904.9907056650. The cubic root of 8438971 is about 203.5931513966.

It can be divided in two parts, 8438 and 971, that added together give a square (9409 = 97²).

The spelling of 8438971 in words is "eight million, four hundred thirty-eight thousand, nine hundred seventy-one".