7827422389 has 2 divisors, whose sum is σ = 7827422390. Its totient is φ = 7827422388.

The previous prime is 7827422341. The next prime is 7827422401. The reversal of 7827422389 is 9832247287.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7762491025 + 64931364 = 88105^2 + 8058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7827422389 is a prime.

It is a super-2 number, since 2×7827422389² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7827422189) 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 as a sum of consecutive naturals, namely, 3913711194 + 3913711195.

It is an arithmetic number, because the mean of its divisors is an integer number (3913711195).

Almost surely, 2^7827422389 is an apocalyptic number.

It is an amenable number.

7827422389 is a deficient number, since it is larger than the sum of its proper divisors (1).

7827422389 is an equidigital number, since it uses as much as digits as its factorization.

7827422389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 52.

The square root of 7827422389 is about 88472.7211574280. The cubic root of 7827422389 is about 1985.5138616385.

The spelling of 7827422389 in words is "seven billion, eight hundred twenty-seven million, four hundred twenty-two thousand, three hundred eighty-nine".