8249047 has 4 divisors (see below), whose sum is σ = 8262520. Its totient is φ = 8235576.

The previous prime is 8249041. The next prime is 8249053. The reversal of 8249047 is 7409428.

It is a happy number.

8249047 is digitally balanced in base 3, 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.

It is an interprime number because it is at equal distance from previous prime (8249041) and next prime (8249053).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8249047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249041) 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, 5772 + ... + 7057.

It is an arithmetic number, because the mean of its divisors is an integer number (2065630).

Almost surely, 2^8249047 is an apocalyptic number.

8249047 is a deficient number, since it is larger than the sum of its proper divisors (13473).

8249047 is a wasteful number, since it uses less digits than its factorization.

8249047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13472.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 8249047 is about 2872.1154224717. The cubic root of 8249047 is about 202.0542203240.

The spelling of 8249047 in words is "eight million, two hundred forty-nine thousand, forty-seven".