5640767 has 4 divisors (see below), whose sum is σ = 6153576. Its totient is φ = 5127960.

The previous prime is 5640743. The next prime is 5640769. The reversal of 5640767 is 7670465.

5640767 is digitally balanced in base 3, 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 cyclic number.

It is not a de Polignac number, because 5640767 - 2¹² = 5636671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640769) 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, 256388 + ... + 256409.

It is an arithmetic number, because the mean of its divisors is an integer number (1538394).

Almost surely, 2^5640767 is an apocalyptic number.

5640767 is a deficient number, since it is larger than the sum of its proper divisors (512809).

5640767 is a wasteful number, since it uses less digits than its factorization.

5640767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512808.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 5640767 is about 2375.0298945487. The cubic root of 5640767 is about 178.0106777250.

The spelling of 5640767 in words is "five million, six hundred forty thousand, seven hundred sixty-seven".