1914443 has 2 divisors, whose sum is σ = 1914444. Its totient is φ = 1914442.

The previous prime is 1914439. The next prime is 1914457. The reversal of 1914443 is 3444191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1914443 - 2² = 1914439 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1914433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957221 + 957222.

It is an arithmetic number, because the mean of its divisors is an integer number (957222).

2^1914443 is an apocalyptic number.

1914443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914443 is an equidigital number, since it uses as much as digits as its factorization.

1914443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 1914443 is about 1383.6339833930. The cubic root of 1914443 is about 124.1692754033.

The spelling of 1914443 in words is "one million, nine hundred fourteen thousand, four hundred forty-three".