1987883 has 2 divisors, whose sum is σ = 1987884. Its totient is φ = 1987882.

The previous prime is 1987879. The next prime is 1987889. The reversal of 1987883 is 3887891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1987883 - 2² = 1987879 is a prime.

It is not a weakly prime, because it can be changed into another prime (1987889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993941 + 993942.

It is an arithmetic number, because the mean of its divisors is an integer number (993942).

2^1987883 is an apocalyptic number.

1987883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1987883 is an equidigital number, since it uses as much as digits as its factorization.

1987883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 44.

The square root of 1987883 is about 1409.9230475455. The cubic root of 1987883 is about 125.7371483532.

The spelling of 1987883 in words is "one million, nine hundred eighty-seven thousand, eight hundred eighty-three".