8742971 has 4 divisors (see below), whose sum is σ = 8848392. Its totient is φ = 8637552.

The previous prime is 8742941. The next prime is 8742973. The reversal of 8742971 is 1792478.

8742971 = T₂₃₈ + T₂₃₉ + ... + T₄₀₃.

8742971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8742971 - 2¹⁰ = 8741947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8742973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52586 + ... + 52751.

It is an arithmetic number, because the mean of its divisors is an integer number (2212098).

Almost surely, 2^8742971 is an apocalyptic number.

8742971 is a deficient number, since it is larger than the sum of its proper divisors (105421).

8742971 is a wasteful number, since it uses less digits than its factorization.

8742971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105420.

The product of its digits is 28224, while the sum is 38.

The square root of 8742971 is about 2956.8515349946. The cubic root of 8742971 is about 206.0090720861.

The spelling of 8742971 in words is "eight million, seven hundred forty-two thousand, nine hundred seventy-one".