1968273 has 16 divisors (see below), whose sum is σ = 2937600. Its totient is φ = 1302480.

The previous prime is 1968269. The next prime is 1968293. The reversal of 1968273 is 3728691.

It is not a de Polignac number, because 1968273 - 2² = 1968269 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1968203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7128 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^1968273 is an apocalyptic number.

It is an amenable number.

1968273 is a deficient number, since it is larger than the sum of its proper divisors (969327).

1968273 is a wasteful number, since it uses less digits than its factorization.

1968273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 543 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1968273 is about 1402.9515315933. The cubic root of 1968273 is about 125.3223254693.

The spelling of 1968273 in words is "one million, nine hundred sixty-eight thousand, two hundred seventy-three".