11020649 has 2 divisors, whose sum is σ = 11020650. Its totient is φ = 11020648.

The previous prime is 11020631. The next prime is 11020651. The reversal of 11020649 is 94602011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8970025 + 2050624 = 2995^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020649 - 2⁸ = 11020393 is a prime.

Together with 11020651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11020699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510324 + 5510325.

It is an arithmetic number, because the mean of its divisors is an integer number (5510325).

Almost surely, 2^11020649 is an apocalyptic number.

It is an amenable number.

11020649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020649 is an equidigital number, since it uses as much as digits as its factorization.

11020649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11020649 is about 3319.7362847070. The cubic root of 11020649 is about 222.5370825708.

The spelling of 11020649 in words is "eleven million, twenty thousand, six hundred forty-nine".