1031946893 has 2 divisors, whose sum is σ = 1031946894. Its totient is φ = 1031946892.

The previous prime is 1031946889. The next prime is 1031946953. The reversal of 1031946893 is 3986491301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983324164 + 48622729 = 31358^2 + 6973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031946893 - 2² = 1031946889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031946863) 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, 515973446 + 515973447.

It is an arithmetic number, because the mean of its divisors is an integer number (515973447).

Almost surely, 2^1031946893 is an apocalyptic number.

It is an amenable number.

1031946893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031946893 is an equidigital number, since it uses as much as digits as its factorization.

1031946893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1031946893 is about 32123.9302234331. The cubic root of 1031946893 is about 1010.5375346684.

The spelling of 1031946893 in words is "one billion, thirty-one million, nine hundred forty-six thousand, eight hundred ninety-three".