1968291 has 12 divisors (see below), whose sum is σ = 3061968. Its totient is φ = 1211184.

The previous prime is 1968269. The next prime is 1968293. The reversal of 1968291 is 1928691.

It is not a de Polignac number, because 1968291 - 2⁷ = 1968163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1968293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8295 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (255164).

2^1968291 is an apocalyptic number.

1968291 is a deficient number, since it is larger than the sum of its proper divisors (1093677).

1968291 is a wasteful number, since it uses less digits than its factorization.

1968291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16842 (or 16839 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1968291 is about 1402.9579466256. The cubic root of 1968291 is about 125.3227074954.

The spelling of 1968291 in words is "one million, nine hundred sixty-eight thousand, two hundred ninety-one".