5640827 has 4 divisors (see below), whose sum is σ = 5672520. Its totient is φ = 5609136.

The previous prime is 5640823. The next prime is 5640839. The reversal of 5640827 is 7280465.

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 5640827 - 2² = 5640823 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 5640793 and 5640802.

It is not an unprimeable number, because it can be changed into a prime (5640823) 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, 15578 + ... + 15935.

It is an arithmetic number, because the mean of its divisors is an integer number (1418130).

Almost surely, 2^5640827 is an apocalyptic number.

5640827 is a deficient number, since it is larger than the sum of its proper divisors (31693).

5640827 is a wasteful number, since it uses less digits than its factorization.

5640827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31692.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 5640827 is about 2375.0425259351. The cubic root of 5640827 is about 178.0113088805.

The spelling of 5640827 in words is "five million, six hundred forty thousand, eight hundred twenty-seven".