1930627849 has 2 divisors, whose sum is σ = 1930627850. Its totient is φ = 1930627848.

The previous prime is 1930627823. The next prime is 1930627859. The reversal of 1930627849 is 9487260391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151380624 + 779247225 = 33932^2 + 27915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1930627849 - 2¹³ = 1930619657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1930627859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965313924 + 965313925.

It is an arithmetic number, because the mean of its divisors is an integer number (965313925).

Almost surely, 2^1930627849 is an apocalyptic number.

It is an amenable number.

1930627849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930627849 is an equidigital number, since it uses as much as digits as its factorization.

1930627849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1930627849 is about 43938.9104211745. The cubic root of 1930627849 is about 1245.1820616209.

The spelling of 1930627849 in words is "one billion, nine hundred thirty million, six hundred twenty-seven thousand, eight hundred forty-nine".