2061679 has 2 divisors, whose sum is σ = 2061680. Its totient is φ = 2061678.

The previous prime is 2061673. The next prime is 2061691. The reversal of 2061679 is 9761602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2061679 - 2⁷ = 2061551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2061679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2061673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030839 + 1030840.

It is an arithmetic number, because the mean of its divisors is an integer number (1030840).

2^2061679 is an apocalyptic number.

2061679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061679 is an equidigital number, since it uses as much as digits as its factorization.

2061679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2061679 is about 1435.8547976728. The cubic root of 2061679 is about 127.2741921445.

The spelling of 2061679 in words is "two million, sixty-one thousand, six hundred seventy-nine".