2146979 has 2 divisors, whose sum is σ = 2146980. Its totient is φ = 2146978.

The previous prime is 2146939. The next prime is 2146987. The reversal of 2146979 is 9796412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2146979 - 2⁸ = 2146723 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2146909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073489 + 1073490.

It is an arithmetic number, because the mean of its divisors is an integer number (1073490).

2^2146979 is an apocalyptic number.

2146979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146979 is an equidigital number, since it uses as much as digits as its factorization.

2146979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 2146979 is about 1465.2573152863. The cubic root of 2146979 is about 129.0058086842.

It can be divided in two parts, 2146 and 979, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2146979 in words is "two million, one hundred forty-six thousand, nine hundred seventy-nine".