11742649 has 2 divisors, whose sum is σ = 11742650. Its totient is φ = 11742648.

The previous prime is 11742641. The next prime is 11742659. The reversal of 11742649 is 94624711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10989225 + 753424 = 3315^2 + 868^2 .

It is a cyclic number.

It is not a de Polignac number, because 11742649 - 2³ = 11742641 is a prime.

It is not a weakly prime, because it can be changed into another prime (11742641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5871324 + 5871325.

It is an arithmetic number, because the mean of its divisors is an integer number (5871325).

Almost surely, 2^11742649 is an apocalyptic number.

It is an amenable number.

11742649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11742649 is an equidigital number, since it uses as much as digits as its factorization.

11742649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 11742649 is about 3426.7548788905. The cubic root of 11742649 is about 227.2943776660.

The spelling of 11742649 in words is "eleven million, seven hundred forty-two thousand, six hundred forty-nine".