2687693 has 4 divisors (see below), whose sum is σ = 2691168. Its totient is φ = 2684220.

The previous prime is 2687677. The next prime is 2687723. The reversal of 2687693 is 3967862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3967862 = 2 ⋅1983931.

It is a cyclic number.

It is not a de Polignac number, because 2687693 - 2⁴ = 2687677 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 6 + 8⁷ + 7 + 6 + 9⁵ + 3¹² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2687693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (672792).

2^2687693 is an apocalyptic number.

It is an amenable number.

2687693 is a deficient number, since it is larger than the sum of its proper divisors (3475).

2687693 is a wasteful number, since it uses less digits than its factorization.

2687693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474.

The product of its digits is 108864, while the sum is 41.

The square root of 2687693 is about 1639.4184944669. The cubic root of 2687693 is about 139.0357722399.

The spelling of 2687693 in words is "two million, six hundred eighty-seven thousand, six hundred ninety-three".