1968713 has 4 divisors (see below), whose sum is σ = 1977540. Its totient is φ = 1959888.

The previous prime is 1968691. The next prime is 1968721. The reversal of 1968713 is 3178691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1646089 + 322624 = 1283^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1968713 - 2¹² = 1964617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1968773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4070 + ... + 4527.

It is an arithmetic number, because the mean of its divisors is an integer number (494385).

2^1968713 is an apocalyptic number.

It is an amenable number.

1968713 is a deficient number, since it is larger than the sum of its proper divisors (8827).

1968713 is an equidigital number, since it uses as much as digits as its factorization.

1968713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8826.

The product of its digits is 9072, while the sum is 35.

The square root of 1968713 is about 1403.1083350903. The cubic root of 1968713 is about 125.3316632178.

The spelling of 1968713 in words is "one million, nine hundred sixty-eight thousand, seven hundred thirteen".