5668739 has 4 divisors (see below), whose sum is σ = 5700240. Its totient is φ = 5637240.

The previous prime is 5668727. The next prime is 5668757. The reversal of 5668739 is 9378665.

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

It is a cyclic number.

It is not a de Polignac number, because 5668739 - 2⁸ = 5668483 is a prime.

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 5668739.

It is not an unprimeable number, because it can be changed into a prime (5668759) 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, 15479 + ... + 15840.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^5668739 is an apocalyptic number.

5668739 is a deficient number, since it is larger than the sum of its proper divisors (31501).

5668739 is a wasteful number, since it uses less digits than its factorization.

5668739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31500.

The product of its digits is 272160, while the sum is 44.

The square root of 5668739 is about 2380.9113801232. The cubic root of 5668739 is about 178.3044384042.

The spelling of 5668739 in words is "five million, six hundred sixty-eight thousand, seven hundred thirty-nine".