2660071 has 2 divisors, whose sum is σ = 2660072. Its totient is φ = 2660070.

The previous prime is 2660069. The next prime is 2660087. The reversal of 2660071 is 1700662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2660071 - 2¹ = 2660069 is a prime.

Together with 2660069, it forms a pair of twin primes.

2660071 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330035 + 1330036.

It is an arithmetic number, because the mean of its divisors is an integer number (1330036).

2^2660071 is an apocalyptic number.

2660071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660071 is an equidigital number, since it uses as much as digits as its factorization.

2660071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2660071 is about 1630.9724093313. The cubic root of 2660071 is about 138.5578309844.

The spelling of 2660071 in words is "two million, six hundred sixty thousand, seventy-one".