1013986649 has 6 divisors (see below), whose sum is σ = 1097985726. Its totient is φ = 935987520.

The previous prime is 1013986639. The next prime is 1013986667. The reversal of 1013986649 is 9466893101.

1013986649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10000 + 1013976649 = 100^2 + 31843^2 .

It is not a de Polignac number, because 1013986649 - 2²⁸ = 745551193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013986639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2999792 + ... + 3000129.

It is an arithmetic number, because the mean of its divisors is an integer number (182997621).

Almost surely, 2^1013986649 is an apocalyptic number.

It is an amenable number.

1013986649 is a deficient number, since it is larger than the sum of its proper divisors (83999077).

1013986649 is an equidigital number, since it uses as much as digits as its factorization.

1013986649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999947 (or 5999934 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1013986649 is about 31843.1570199941. The cubic root of 1013986649 is about 1004.6406474119.

The spelling of 1013986649 in words is "one billion, thirteen million, nine hundred eighty-six thousand, six hundred forty-nine".