1199879 has 2 divisors, whose sum is σ = 1199880. Its totient is φ = 1199878.

The previous prime is 1199857. The next prime is 1199893. The reversal of 1199879 is 9789911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1199879 - 2⁸ = 1199623 is a prime.

It is a super-2 number, since 2×1199879² = 2879419229282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1199819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599939 + 599940.

It is an arithmetic number, because the mean of its divisors is an integer number (599940).

2^1199879 is an apocalyptic number.

1199879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199879 is an equidigital number, since it uses as much as digits as its factorization.

1199879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 44.

The square root of 1199879 is about 1095.3898849268. The cubic root of 1199879 is about 106.2622850847.

The spelling of 1199879 in words is "one million, one hundred ninety-nine thousand, eight hundred seventy-nine".