8739047 has 4 divisors (see below), whose sum is σ = 8746560. Its totient is φ = 8731536.

The previous prime is 8739023. The next prime is 8739053. The reversal of 8739047 is 7409378.

8739047 is digitally balanced in base 2, 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7409378 = 2 ⋅3704689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8739047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8739047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8739007) 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, 1598 + ... + 4475.

It is an arithmetic number, because the mean of its divisors is an integer number (2186640).

Almost surely, 2^8739047 is an apocalyptic number.

8739047 is a deficient number, since it is larger than the sum of its proper divisors (7513).

8739047 is a wasteful number, since it uses less digits than its factorization.

8739047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 8739047 is about 2956.1879168957. The cubic root of 8739047 is about 205.9782473025.

The spelling of 8739047 in words is "eight million, seven hundred thirty-nine thousand, forty-seven".