4649549 has 2 divisors, whose sum is σ = 4649550. Its totient is φ = 4649548.

The previous prime is 4649539. The next prime is 4649573. The reversal of 4649549 is 9459464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3087049 + 1562500 = 1757^2 + 1250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4649549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4649539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2324774 + 2324775.

It is an arithmetic number, because the mean of its divisors is an integer number (2324775).

Almost surely, 2^4649549 is an apocalyptic number.

It is an amenable number.

4649549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4649549 is an equidigital number, since it uses as much as digits as its factorization.

4649549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 4649549 is about 2156.2812896280. The cubic root of 4649549 is about 166.9053571092.

The spelling of 4649549 in words is "four million, six hundred forty-nine thousand, five hundred forty-nine".