10726721 has 2 divisors, whose sum is σ = 10726722. Its totient is φ = 10726720.

The previous prime is 10726687. The next prime is 10726741. The reversal of 10726721 is 12762701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10471696 + 255025 = 3236^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 10726721 - 2¹⁰ = 10725697 is a prime.

It is not a weakly prime, because it can be changed into another prime (10726741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5363360 + 5363361.

It is an arithmetic number, because the mean of its divisors is an integer number (5363361).

Almost surely, 2^10726721 is an apocalyptic number.

It is an amenable number.

10726721 is a deficient number, since it is larger than the sum of its proper divisors (1).

10726721 is an equidigital number, since it uses as much as digits as its factorization.

10726721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 10726721 is about 3275.1673239699. The cubic root of 10726721 is about 220.5408250501.

The spelling of 10726721 in words is "ten million, seven hundred twenty-six thousand, seven hundred twenty-one".