11277649 has 2 divisors, whose sum is σ = 11277650. Its totient is φ = 11277648.

The previous prime is 11277631. The next prime is 11277671. The reversal of 11277649 is 94677211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8614225 + 2663424 = 2935^2 + 1632^2 .

It is an emirp because it is prime and its reverse (94677211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11277649 - 2¹¹ = 11275601 is a prime.

It is not a weakly prime, because it can be changed into another prime (11277689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5638824 + 5638825.

It is an arithmetic number, because the mean of its divisors is an integer number (5638825).

Almost surely, 2^11277649 is an apocalyptic number.

It is an amenable number.

11277649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11277649 is an equidigital number, since it uses as much as digits as its factorization.

11277649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 11277649 is about 3358.2211064788. The cubic root of 11277649 is about 224.2536521285.

The spelling of 11277649 in words is "eleven million, two hundred seventy-seven thousand, six hundred forty-nine".