1936489361 has 2 divisors, whose sum is σ = 1936489362. Its totient is φ = 1936489360.

The previous prime is 1936489349. The next prime is 1936489411. The reversal of 1936489361 is 1639846391.

It is an a-pointer prime, because the next prime (1936489411) can be obtained adding 1936489361 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1923348736 + 13140625 = 43856^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1936489361 - 2²⁶ = 1869380497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1936489661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968244680 + 968244681.

It is an arithmetic number, because the mean of its divisors is an integer number (968244681).

Almost surely, 2^1936489361 is an apocalyptic number.

It is an amenable number.

1936489361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936489361 is an equidigital number, since it uses as much as digits as its factorization.

1936489361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 50.

The square root of 1936489361 is about 44005.5605690917. The cubic root of 1936489361 is about 1246.4409397698.

The spelling of 1936489361 in words is "one billion, nine hundred thirty-six million, four hundred eighty-nine thousand, three hundred sixty-one".