1968949 has 4 divisors (see below), whose sum is σ = 1971936. Its totient is φ = 1965964.

The previous prime is 1968919. The next prime is 1968977. The reversal of 1968949 is 9498691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9498691 = 229 ⋅41479.

It is a cyclic number.

It is not a de Polignac number, because 1968949 - 2¹¹ = 1966901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1968899 and 1968908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968919) 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 3 ways as a sum of consecutive naturals, for example, 19 + ... + 1984.

It is an arithmetic number, because the mean of its divisors is an integer number (492984).

2^1968949 is an apocalyptic number.

It is an amenable number.

1968949 is a deficient number, since it is larger than the sum of its proper divisors (2987).

1968949 is an equidigital number, since it uses as much as digits as its factorization.

1968949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986.

The product of its digits is 139968, while the sum is 46.

The square root of 1968949 is about 1403.1924315645. The cubic root of 1968949 is about 125.3366710733.

The spelling of 1968949 in words is "one million, nine hundred sixty-eight thousand, nine hundred forty-nine".