8249508047 has 4 divisors (see below), whose sum is σ = 8999463336. Its totient is φ = 7499552760.

The previous prime is 8249508037. The next prime is 8249508061. The reversal of 8249508047 is 7408059428.

It is a happy number.

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 8249508047 - 2²² = 8245313743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8249507992 and 8249508010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249508037) 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, 374977628 + ... + 374977649.

It is an arithmetic number, because the mean of its divisors is an integer number (2249865834).

Almost surely, 2^8249508047 is an apocalyptic number.

8249508047 is a deficient number, since it is larger than the sum of its proper divisors (749955289).

8249508047 is a wasteful number, since it uses less digits than its factorization.

8249508047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749955288.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 8249508047 is about 90826.8024704162. The cubic root of 8249508047 is about 2020.5798458733.

The spelling of 8249508047 in words is "eight billion, two hundred forty-nine million, five hundred eight thousand, forty-seven".