7974847253 has 2 divisors, whose sum is σ = 7974847254. Its totient is φ = 7974847252.

The previous prime is 7974847241. The next prime is 7974847273. The reversal of 7974847253 is 3527484797.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7974847204 + 49 = 89302^2 + 7^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7974847253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7974847273) 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 as a sum of consecutive naturals, namely, 3987423626 + 3987423627.

It is an arithmetic number, because the mean of its divisors is an integer number (3987423627).

Almost surely, 2^7974847253 is an apocalyptic number.

It is an amenable number.

7974847253 is a deficient number, since it is larger than the sum of its proper divisors (1).

7974847253 is an equidigital number, since it uses as much as digits as its factorization.

7974847253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 56.

The square root of 7974847253 is about 89302.0002743500. Note that the first 3 decimals coincide. The cubic root of 7974847253 is about 1997.9017371664.

The spelling of 7974847253 in words is "seven billion, nine hundred seventy-four million, eight hundred forty-seven thousand, two hundred fifty-three".