5687679 has 4 divisors (see below), whose sum is σ = 7583576. Its totient is φ = 3791784.

The previous prime is 5687657. The next prime is 5687687. The reversal of 5687679 is 9767865.

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

It is not a de Polignac number, because 5687679 - 2⁷ = 5687551 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5687609) 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, 947944 + ... + 947949.

It is an arithmetic number, because the mean of its divisors is an integer number (1895894).

Almost surely, 2^5687679 is an apocalyptic number.

5687679 is a deficient number, since it is larger than the sum of its proper divisors (1895897).

5687679 is a wasteful number, since it uses less digits than its factorization.

5687679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895896.

The product of its digits is 635040, while the sum is 48.

The square root of 5687679 is about 2384.8855318442. The cubic root of 5687679 is about 178.5027971535.

The spelling of 5687679 in words is "five million, six hundred eighty-seven thousand, six hundred seventy-nine".