8474707639 has 4 divisors (see below), whose sum is σ = 8475187320. Its totient is φ = 8474227960.

The previous prime is 8474707531. The next prime is 8474707643. The reversal of 8474707639 is 9367074748.

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 8474707639 - 2¹⁷ = 8474576567 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 8474707639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8474707139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212284 + ... + 249025.

It is an arithmetic number, because the mean of its divisors is an integer number (2118796830).

Almost surely, 2^8474707639 is an apocalyptic number.

8474707639 is a deficient number, since it is larger than the sum of its proper divisors (479681).

8474707639 is a wasteful number, since it uses less digits than its factorization.

8474707639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479680.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The square root of 8474707639 is about 92058.1752969284. The cubic root of 8474707639 is about 2038.8013302135.

The spelling of 8474707639 in words is "eight billion, four hundred seventy-four million, seven hundred seven thousand, six hundred thirty-nine".