7828973189 has 2 divisors, whose sum is σ = 7828973190. Its totient is φ = 7828973188.

The previous prime is 7828973179. The next prime is 7828973209. The reversal of 7828973189 is 9813798287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7564650625 + 264322564 = 86975^2 + 16258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7828973189 is a prime.

It is a super-2 number, since 2×7828973189² (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 (7828973129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3914486594 + 3914486595.

It is an arithmetic number, because the mean of its divisors is an integer number (3914486595).

Almost surely, 2^7828973189 is an apocalyptic number.

It is an amenable number.

7828973189 is a deficient number, since it is larger than the sum of its proper divisors (1).

7828973189 is an equidigital number, since it uses as much as digits as its factorization.

7828973189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 62.

The square root of 7828973189 is about 88481.4850067516. The cubic root of 7828973189 is about 1985.6449789428.

The spelling of 7828973189 in words is "seven billion, eight hundred twenty-eight million, nine hundred seventy-three thousand, one hundred eighty-nine".