2601979 has 2 divisors, whose sum is σ = 2601980. Its totient is φ = 2601978.

The previous prime is 2601943. The next prime is 2601997. The reversal of 2601979 is 9791062.

Together with next prime (2601997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2601979 - 2¹¹ = 2599931 is a prime.

It is not a weakly prime, because it can be changed into another prime (2601479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300989 + 1300990.

It is an arithmetic number, because the mean of its divisors is an integer number (1300990).

2^2601979 is an apocalyptic number.

2601979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2601979 is an equidigital number, since it uses as much as digits as its factorization.

2601979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 2601979 is about 1613.0650947807. The cubic root of 2601979 is about 137.5417658247.

The spelling of 2601979 in words is "two million, six hundred one thousand, nine hundred seventy-nine".