4369649 has 2 divisors, whose sum is σ = 4369650. Its totient is φ = 4369648.

The previous prime is 4369591. The next prime is 4369661. The reversal of 4369649 is 9469634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4276624 + 93025 = 2068^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 4369649 - 2¹² = 4365553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4369669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2184824 + 2184825.

It is an arithmetic number, because the mean of its divisors is an integer number (2184825).

Almost surely, 2^4369649 is an apocalyptic number.

It is an amenable number.

4369649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4369649 is an equidigital number, since it uses as much as digits as its factorization.

4369649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 4369649 is about 2090.3705413156. The cubic root of 4369649 is about 163.4866083980.

The spelling of 4369649 in words is "four million, three hundred sixty-nine thousand, six hundred forty-nine".