1999875 has 16 divisors (see below), whose sum is σ = 3328416. Its totient is φ = 1066400.

The previous prime is 1999871. The next prime is 1999889. The reversal of 1999875 is 5789991.

It is not a de Polignac number, because 1999875 - 2² = 1999871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1999871) 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, 2292 + ... + 3041.

It is an arithmetic number, because the mean of its divisors is an integer number (208026).

2^1999875 is an apocalyptic number.

1999875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1999875 is a deficient number, since it is larger than the sum of its proper divisors (1328541).

1999875 is an equidigital number, since it uses as much as digits as its factorization.

1999875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351 (or 5341 counting only the distinct ones).

The product of its digits is 204120, while the sum is 48.

The square root of 1999875 is about 1414.1693675087. The cubic root of 1999875 is about 125.9894800993.

The spelling of 1999875 in words is "one million, nine hundred ninety-nine thousand, eight hundred seventy-five".