4567649 has 2 divisors, whose sum is σ = 4567650. Its totient is φ = 4567648.

The previous prime is 4567637. The next prime is 4567669. The reversal of 4567649 is 9467654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4231249 + 336400 = 2057^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 4567649 - 2⁸ = 4567393 is a prime.

It is not a weakly prime, because it can be changed into another prime (4567669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283824 + 2283825.

It is an arithmetic number, because the mean of its divisors is an integer number (2283825).

Almost surely, 2^4567649 is an apocalyptic number.

It is an amenable number.

4567649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4567649 is an equidigital number, since it uses as much as digits as its factorization.

4567649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 4567649 is about 2137.2058861981. The cubic root of 4567649 is about 165.9195550608.

The spelling of 4567649 in words is "four million, five hundred sixty-seven thousand, six hundred forty-nine".