1914889 has 2 divisors, whose sum is σ = 1914890. Its totient is φ = 1914888.

The previous prime is 1914883. The next prime is 1914923. The reversal of 1914889 is 9884191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1459264 + 455625 = 1208^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914889 - 2¹⁹ = 1390601 is a prime.

It is a super-3 number, since 3×1914889³ = 21064544279573332107, which contains 333 as substring.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (1914883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957444 + 957445.

It is an arithmetic number, because the mean of its divisors is an integer number (957445).

2^1914889 is an apocalyptic number.

It is an amenable number.

1914889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914889 is an equidigital number, since it uses as much as digits as its factorization.

1914889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 40.

The square root of 1914889 is about 1383.7951437984. The cubic root of 1914889 is about 124.1789170583.

The spelling of 1914889 in words is "one million, nine hundred fourteen thousand, eight hundred eighty-nine".