10717561 has 2 divisors, whose sum is σ = 10717562. Its totient is φ = 10717560.

The previous prime is 10717529. The next prime is 10717571. The reversal of 10717561 is 16571701.

10717561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10497600 + 219961 = 3240^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 10717561 - 2⁵ = 10717529 is a prime.

It is a super-2 number, since 2×10717561² = 229732227577442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10717571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5358780 + 5358781.

It is an arithmetic number, because the mean of its divisors is an integer number (5358781).

Almost surely, 2^10717561 is an apocalyptic number.

It is an amenable number.

10717561 is a deficient number, since it is larger than the sum of its proper divisors (1).

10717561 is an equidigital number, since it uses as much as digits as its factorization.

10717561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 10717561 is about 3273.7686234675. The cubic root of 10717561 is about 220.4780307981.

The spelling of 10717561 in words is "ten million, seven hundred seventeen thousand, five hundred sixty-one".