5640463 has 2 divisors, whose sum is σ = 5640464. Its totient is φ = 5640462.

The previous prime is 5640461. The next prime is 5640527. The reversal of 5640463 is 3640465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5640463 - 2¹ = 5640461 is a prime.

Together with 5640461, it forms a pair of twin primes.

5640463 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5640461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820231 + 2820232.

It is an arithmetic number, because the mean of its divisors is an integer number (2820232).

Almost surely, 2^5640463 is an apocalyptic number.

5640463 is a deficient number, since it is larger than the sum of its proper divisors (1).

5640463 is an equidigital number, since it uses as much as digits as its factorization.

5640463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 5640463 is about 2374.9658944920. The cubic root of 5640463 is about 178.0074798018.

The spelling of 5640463 in words is "five million, six hundred forty thousand, four hundred sixty-three".