2100079 has 2 divisors, whose sum is σ = 2100080. Its totient is φ = 2100078.

The previous prime is 2100071. The next prime is 2100097. The reversal of 2100079 is 9700012.

Together with next prime (2100097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100079 - 2³ = 2100071 is a prime.

It is a Chen prime.

2100079 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050039 + 1050040.

It is an arithmetic number, because the mean of its divisors is an integer number (1050040).

2^2100079 is an apocalyptic number.

2100079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100079 is an equidigital number, since it uses as much as digits as its factorization.

2100079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 2100079 is about 1449.1649319522. The cubic root of 2100079 is about 128.0595222842.

The spelling of 2100079 in words is "two million, one hundred thousand, seventy-nine".