1880789 has 2 divisors, whose sum is σ = 1880790. Its totient is φ = 1880788.

The previous prime is 1880741. The next prime is 1880803. The reversal of 1880789 is 9870881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1868689 + 12100 = 1367^2 + 110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1880789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1880729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 940394 + 940395.

It is an arithmetic number, because the mean of its divisors is an integer number (940395).

2^1880789 is an apocalyptic number.

It is an amenable number.

1880789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1880789 is an equidigital number, since it uses as much as digits as its factorization.

1880789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 1880789 is about 1371.4186085948. The cubic root of 1880789 is about 123.4373791272.

Adding to 1880789 its sum of digits (41), we get a triangular number (1880830 = T₁₉₃₉).

The spelling of 1880789 in words is "one million, eight hundred eighty thousand, seven hundred eighty-nine".