5640719 has 16 divisors (see below), whose sum is σ = 6905088. Its totient is φ = 4497792.

The previous prime is 5640709. The next prime is 5640721. The reversal of 5640719 is 9170465.

5640719 = T₁₂₆₆ + T₁₂₆₇ + ... + T₁₂₇₂.

It is a happy number.

It is not a de Polignac number, because 5640719 - 2⁸ = 5640463 is a prime.

It is a super-2 number, since 2×5640719² = 63635421673922, which contains 22 as substring.

It is an Ulam 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 (5640709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12512 + ... + 12954.

It is an arithmetic number, because the mean of its divisors is an integer number (431568).

Almost surely, 2^5640719 is an apocalyptic number.

5640719 is a deficient number, since it is larger than the sum of its proper divisors (1264369).

5640719 is a wasteful number, since it uses less digits than its factorization.

5640719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 5640719 is about 2375.0197893912. The cubic root of 5640719 is about 178.0101727974.

The spelling of 5640719 in words is "five million, six hundred forty thousand, seven hundred nineteen".