2705687 has 2 divisors, whose sum is σ = 2705688. Its totient is φ = 2705686.

The previous prime is 2705663. The next prime is 2705693. The reversal of 2705687 is 7865072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2705687 - 2⁶ = 2705623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2705617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352843 + 1352844.

It is an arithmetic number, because the mean of its divisors is an integer number (1352844).

2^2705687 is an apocalyptic number.

2705687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705687 is an equidigital number, since it uses as much as digits as its factorization.

2705687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2705687 is about 1644.8972612294. The cubic root of 2705687 is about 139.3453620612.

The spelling of 2705687 in words is "two million, seven hundred five thousand, six hundred eighty-seven".