11613649 has 2 divisors, whose sum is σ = 11613650. Its totient is φ = 11613648.

The previous prime is 11613631. The next prime is 11613677. The reversal of 11613649 is 94631611.

11613649 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 986049 = 3260^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 11613649 - 2²¹ = 9516497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11613649.

It is not a weakly prime, because it can be changed into another prime (11613629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806824 + 5806825.

It is an arithmetic number, because the mean of its divisors is an integer number (5806825).

Almost surely, 2^11613649 is an apocalyptic number.

It is an amenable number.

11613649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11613649 is an equidigital number, since it uses as much as digits as its factorization.

11613649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 11613649 is about 3407.8804263061. The cubic root of 11613649 is about 226.4589896626.

The spelling of 11613649 in words is "eleven million, six hundred thirteen thousand, six hundred forty-nine".