8066739 has 4 divisors (see below), whose sum is σ = 10755656. Its totient is φ = 5377824.

The previous prime is 8066717. The next prime is 8066749. The reversal of 8066739 is 9376608.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8066739 - 2¹¹ = 8064691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8066697 and 8066706.

It is not an unprimeable number, because it can be changed into a prime (8066749) 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, 1344454 + ... + 1344459.

It is an arithmetic number, because the mean of its divisors is an integer number (2688914).

Almost surely, 2^8066739 is an apocalyptic number.

8066739 is a deficient number, since it is larger than the sum of its proper divisors (2688917).

8066739 is a wasteful number, since it uses less digits than its factorization.

8066739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688916.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 8066739 is about 2840.2005210900. The cubic root of 8066739 is about 200.5546189010.

The spelling of 8066739 in words is "eight million, sixty-six thousand, seven hundred thirty-nine".