1941887 has 4 divisors (see below), whose sum is σ = 1944936. Its totient is φ = 1938840.

The previous prime is 1941881. The next prime is 1941889. The reversal of 1941887 is 7881491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1941887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1941887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 1977.

It is an arithmetic number, because the mean of its divisors is an integer number (486234).

2^1941887 is an apocalyptic number.

1941887 is a deficient number, since it is larger than the sum of its proper divisors (3049).

1941887 is an equidigital number, since it uses as much as digits as its factorization.

1941887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

The product of its digits is 16128, while the sum is 38.

The square root of 1941887 is about 1393.5160565993. The cubic root of 1941887 is about 124.7597947070.

The spelling of 1941887 in words is "one million, nine hundred forty-one thousand, eight hundred eighty-seven".