2116679 has 2 divisors, whose sum is σ = 2116680. Its totient is φ = 2116678.

The previous prime is 2116669. The next prime is 2116691. The reversal of 2116679 is 9766112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2116679 - 2⁴ = 2116663 is a prime.

It is equal to p₁₅₆₉₆₅ and since 2116679 and 156965 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058339 + 1058340.

It is an arithmetic number, because the mean of its divisors is an integer number (1058340).

2^2116679 is an apocalyptic number.

2116679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116679 is an equidigital number, since it uses as much as digits as its factorization.

2116679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 2116679 is about 1454.8810947978. The cubic root of 2116679 is about 128.3960511268.

The spelling of 2116679 in words is "two million, one hundred sixteen thousand, six hundred seventy-nine".