10656449 has 2 divisors, whose sum is σ = 10656450. Its totient is φ = 10656448.

The previous prime is 10656421. The next prime is 10656469. The reversal of 10656449 is 94465601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10608049 + 48400 = 3257^2 + 220^2 .

It is an emirp because it is prime and its reverse (94465601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10656449 - 2⁸ = 10656193 is a prime.

It is a super-2 number, since 2×10656449² = 227119810579202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10656469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328224 + 5328225.

It is an arithmetic number, because the mean of its divisors is an integer number (5328225).

Almost surely, 2^10656449 is an apocalyptic number.

It is an amenable number.

10656449 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656449 is an equidigital number, since it uses as much as digits as its factorization.

10656449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 10656449 is about 3264.4216945732. The cubic root of 10656449 is about 220.0581733214.

The spelling of 10656449 in words is "ten million, six hundred fifty-six thousand, four hundred forty-nine".