1918079 has 2 divisors, whose sum is σ = 1918080. Its totient is φ = 1918078.

The previous prime is 1918067. The next prime is 1918087. The reversal of 1918079 is 9708191.

It is a strong prime.

It is an emirp because it is prime and its reverse (9708191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1918079 - 2¹² = 1913983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1918019) 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, 959039 + 959040.

It is an arithmetic number, because the mean of its divisors is an integer number (959040).

2^1918079 is an apocalyptic number.

1918079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918079 is an equidigital number, since it uses as much as digits as its factorization.

1918079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1918079 is about 1384.9472914158. The cubic root of 1918079 is about 124.2478350614.

The spelling of 1918079 in words is "one million, nine hundred eighteen thousand, seventy-nine".