1013985799 has 2 divisors, whose sum is σ = 1013985800. Its totient is φ = 1013985798.

The previous prime is 1013985781. The next prime is 1013985803. The reversal of 1013985799 is 9975893101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1013985799 - 2⁵ = 1013985767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013985769) 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, 506992899 + 506992900.

It is an arithmetic number, because the mean of its divisors is an integer number (506992900).

Almost surely, 2^1013985799 is an apocalyptic number.

1013985799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013985799 is an equidigital number, since it uses as much as digits as its factorization.

1013985799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 52.

The square root of 1013985799 is about 31843.1436733247. The cubic root of 1013985799 is about 1004.6403666900.

The spelling of 1013985799 in words is "one billion, thirteen million, nine hundred eighty-five thousand, seven hundred ninety-nine".