1871879 has 2 divisors, whose sum is σ = 1871880. Its totient is φ = 1871878.

The previous prime is 1871851. The next prime is 1871917. The reversal of 1871879 is 9781781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1871879 - 2¹² = 1867783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1871839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 935939 + 935940.

It is an arithmetic number, because the mean of its divisors is an integer number (935940).

2^1871879 is an apocalyptic number.

1871879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1871879 is an equidigital number, since it uses as much as digits as its factorization.

1871879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 41.

The square root of 1871879 is about 1368.1662910626. The cubic root of 1871879 is about 123.2421475165.

The spelling of 1871879 in words is "one million, eight hundred seventy-one thousand, eight hundred seventy-nine".