8513739 has 12 divisors (see below), whose sum is σ = 13243776. Its totient is φ = 5239152.

The previous prime is 8513731. The next prime is 8513783. The reversal of 8513739 is 9373158.

8513739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8513739 - 2³ = 8513731 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

8513739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8513731) 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 11 ways as a sum of consecutive naturals, for example, 36267 + ... + 36500.

It is an arithmetic number, because the mean of its divisors is an integer number (1103648).

Almost surely, 2^8513739 is an apocalyptic number.

8513739 is a deficient number, since it is larger than the sum of its proper divisors (4730037).

8513739 is a wasteful number, since it uses less digits than its factorization.

8513739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72786 (or 72783 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 8513739 is about 2917.8312151322. The cubic root of 8513739 is about 204.1926524933.

It can be divided in two parts, 85 and 13739, that added together give a cube (13824 = 24³).

The spelling of 8513739 in words is "eight million, five hundred thirteen thousand, seven hundred thirty-nine".