5640079 has 2 divisors, whose sum is σ = 5640080. Its totient is φ = 5640078.

The previous prime is 5640071. The next prime is 5640119. The reversal of 5640079 is 9700465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5640079 - 2³ = 5640071 is a prime.

It is a super-2 number, since 2×5640079² = 63620982252482, which contains 22 as substring.

It is a Chen prime.

5640079 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5640079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5640071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820039 + 2820040.

It is an arithmetic number, because the mean of its divisors is an integer number (2820040).

Almost surely, 2^5640079 is an apocalyptic number.

5640079 is a deficient number, since it is larger than the sum of its proper divisors (1).

5640079 is an equidigital number, since it uses as much as digits as its factorization.

5640079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 5640079 is about 2374.8850498498. The cubic root of 5640079 is about 178.0034401557.

The spelling of 5640079 in words is "five million, six hundred forty thousand, seventy-nine".