1117679 has 2 divisors, whose sum is σ = 1117680. Its totient is φ = 1117678.

The previous prime is 1117673. The next prime is 1117681. The reversal of 1117679 is 9767111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117679 is a prime.

Together with 1117681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558839 + 558840.

It is an arithmetic number, because the mean of its divisors is an integer number (558840).

2^1117679 is an apocalyptic number.

1117679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117679 is an equidigital number, since it uses as much as digits as its factorization.

1117679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 32.

The square root of 1117679 is about 1057.2033862980. The cubic root of 1117679 is about 103.7780956474.

The spelling of 1117679 in words is "one million, one hundred seventeen thousand, six hundred seventy-nine".