1916741 has 2 divisors, whose sum is σ = 1916742. Its totient is φ = 1916740.

The previous prime is 1916737. The next prime is 1916749. The reversal of 1916741 is 1476191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1635841 + 280900 = 1279^2 + 530^2 .

It is an emirp because it is prime and its reverse (1476191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1916741 - 2² = 1916737 is a prime.

It is a super-2 number, since 2×1916741² = 7347792122162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1916749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958370 + 958371.

It is an arithmetic number, because the mean of its divisors is an integer number (958371).

2^1916741 is an apocalyptic number.

It is an amenable number.

1916741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1916741 is an equidigital number, since it uses as much as digits as its factorization.

1916741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 1916741 is about 1384.4641562713. The cubic root of 1916741 is about 124.2189376986.

The spelling of 1916741 in words is "one million, nine hundred sixteen thousand, seven hundred forty-one".