2705851 has 2 divisors, whose sum is σ = 2705852. Its totient is φ = 2705850.

The previous prime is 2705849. The next prime is 2705863. The reversal of 2705851 is 1585072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2705851 - 2¹ = 2705849 is a prime.

Together with 2705849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2705821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352925 + 1352926.

It is an arithmetic number, because the mean of its divisors is an integer number (1352926).

2^2705851 is an apocalyptic number.

2705851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705851 is an equidigital number, since it uses as much as digits as its factorization.

2705851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 2705851 is about 1644.9471116118. The cubic root of 2705851 is about 139.3481773878.

The spelling of 2705851 in words is "two million, seven hundred five thousand, eight hundred fifty-one".