1920975 has 24 divisors (see below), whose sum is σ = 3630720. Its totient is φ = 877920.

The previous prime is 1920959. The next prime is 1920991. The reversal of 1920975 is 5790291.

It is an interprime number because it is at equal distance from previous prime (1920959) and next prime (1920991).

It is not a de Polignac number, because 1920975 - 2⁴ = 1920959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1305 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (151280).

2^1920975 is an apocalyptic number.

1920975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1920975 is a deficient number, since it is larger than the sum of its proper divisors (1709745).

1920975 is a wasteful number, since it uses less digits than its factorization.

1920975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 1920975 is about 1385.9924242217. The cubic root of 1920975 is about 124.3103352314.

The spelling of 1920975 in words is "one million, nine hundred twenty thousand, nine hundred seventy-five".