1968013 has 8 divisors (see below), whose sum is σ = 2018016. Its totient is φ = 1918800.

The previous prime is 1967947. The next prime is 1968017. The reversal of 1968013 is 3108691.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1968013 - 2⁹ = 1967501 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 (1968017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10783 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

2^1968013 is an apocalyptic number.

It is an amenable number.

1968013 is a deficient number, since it is larger than the sum of its proper divisors (50003).

1968013 is a wasteful number, since it uses less digits than its factorization.

1968013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1968013 is about 1402.8588667432. The cubic root of 1968013 is about 125.3168070547.

The spelling of 1968013 in words is "one million, nine hundred sixty-eight thousand, thirteen".