8251794647 has 16 divisors (see below), whose sum is σ = 8617190400. Its totient is φ = 7891994880.

The previous prime is 8251794623. The next prime is 8251794671. The reversal of 8251794647 is 7464971528.

It is an interprime number because it is at equal distance from previous prime (8251794623) and next prime (8251794671).

It is a cyclic number.

It is not a de Polignac number, because 8251794647 - 2⁸ = 8251794391 is a prime.

It is a super-4 number, since 4×8251794647⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8251790647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3022379 + ... + 3025107.

It is an arithmetic number, because the mean of its divisors is an integer number (538574400).

Almost surely, 2^8251794647 is an apocalyptic number.

8251794647 is a deficient number, since it is larger than the sum of its proper divisors (365395753).

8251794647 is a wasteful number, since it uses less digits than its factorization.

8251794647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706.

The product of its digits is 3386880, while the sum is 53.

The square root of 8251794647 is about 90839.3892923109. The cubic root of 8251794647 is about 2020.7665168454.

The spelling of 8251794647 in words is "eight billion, two hundred fifty-one million, seven hundred ninety-four thousand, six hundred forty-seven".