8739971 has 4 divisors (see below), whose sum is σ = 8749944. Its totient is φ = 8730000.

The previous prime is 8739967. The next prime is 8740003. The reversal of 8739971 is 1799378.

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 8739971 - 2² = 8739967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8739901) 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, 3530 + ... + 5471.

It is an arithmetic number, because the mean of its divisors is an integer number (2187486).

Almost surely, 2^8739971 is an apocalyptic number.

8739971 is a deficient number, since it is larger than the sum of its proper divisors (9973).

8739971 is an equidigital number, since it uses as much as digits as its factorization.

8739971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972.

The product of its digits is 95256, while the sum is 44.

The square root of 8739971 is about 2956.3441951167. The cubic root of 8739971 is about 205.9855065682.

It can be divided in two parts, 8739 and 971, that multiplied together give a square (8485569 = 2913²).

The spelling of 8739971 in words is "eight million, seven hundred thirty-nine thousand, nine hundred seventy-one".