2697686 has 4 divisors (see below), whose sum is σ = 4046532. Its totient is φ = 1348842.

The previous prime is 2697661. The next prime is 2697689. The reversal of 2697686 is 6867962.

2697686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2697689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674420 + ... + 674423.

It is an arithmetic number, because the mean of its divisors is an integer number (1011633).

2^2697686 is an apocalyptic number.

2697686 is a deficient number, since it is larger than the sum of its proper divisors (1348846).

2697686 is a wasteful number, since it uses less digits than its factorization.

2697686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348845.

The product of its digits is 217728, while the sum is 44.

The square root of 2697686 is about 1642.4633938082. The cubic root of 2697686 is about 139.2078735032.

The spelling of 2697686 in words is "two million, six hundred ninety-seven thousand, six hundred eighty-six".