4567681 has 2 divisors, whose sum is σ = 4567682. Its totient is φ = 4567680.

The previous prime is 4567669. The next prime is 4567691. The reversal of 4567681 is 1867654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 1540081 = 1740^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 4567681 - 2⁵ = 4567649 is a prime.

It is a super-2 number, since 2×4567681² = 41727419435522, which contains 22 as substring.

4567681 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4567681.

It is not a weakly prime, because it can be changed into another prime (4567621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283840 + 2283841.

It is an arithmetic number, because the mean of its divisors is an integer number (2283841).

Almost surely, 2^4567681 is an apocalyptic number.

It is an amenable number.

4567681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4567681 is an equidigital number, since it uses as much as digits as its factorization.

4567681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 4567681 is about 2137.2133725953. The cubic root of 4567681 is about 165.9199425259.

The spelling of 4567681 in words is "four million, five hundred sixty-seven thousand, six hundred eighty-one".