1930219847 has 2 divisors, whose sum is σ = 1930219848. Its totient is φ = 1930219846.

The previous prime is 1930219813. The next prime is 1930219883. The reversal of 1930219847 is 7489120391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1930219847 - 2²⁴ = 1913442631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1930219798 and 1930219807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1930210847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965109923 + 965109924.

It is an arithmetic number, because the mean of its divisors is an integer number (965109924).

Almost surely, 2^1930219847 is an apocalyptic number.

1930219847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930219847 is an equidigital number, since it uses as much as digits as its factorization.

1930219847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1930219847 is about 43934.2673433847. The cubic root of 1930219847 is about 1245.0943401466.

The spelling of 1930219847 in words is "one billion, nine hundred thirty million, two hundred nineteen thousand, eight hundred forty-seven".