8025821247 has 8 divisors (see below), whose sum is σ = 10701518256. Its totient is φ = 5350335872.

The previous prime is 8025821239. The next prime is 8025821249. The reversal of 8025821247 is 7421285208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8025821247 - 2³ = 8025821239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8025821249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93313 + ... + 157349.

It is an arithmetic number, because the mean of its divisors is an integer number (1337689782).

Almost surely, 2^8025821247 is an apocalyptic number.

8025821247 is a deficient number, since it is larger than the sum of its proper divisors (2675697009).

8025821247 is a wasteful number, since it uses less digits than its factorization.

8025821247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105817.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 8025821247 is about 89586.9479723470. The cubic root of 8025821247 is about 2002.1494596673.

The spelling of 8025821247 in words is "eight billion, twenty-five million, eight hundred twenty-one thousand, two hundred forty-seven".