10640761 has 2 divisors, whose sum is σ = 10640762. Its totient is φ = 10640760.

The previous prime is 10640731. The next prime is 10640783. The reversal of 10640761 is 16704601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8555625 + 2085136 = 2925^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 10640761 - 2⁷ = 10640633 is a prime.

It is a super-2 number, since 2×10640761² = 226451589318242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10640701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5320380 + 5320381.

It is an arithmetic number, because the mean of its divisors is an integer number (5320381).

Almost surely, 2^10640761 is an apocalyptic number.

It is an amenable number.

10640761 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640761 is an equidigital number, since it uses as much as digits as its factorization.

10640761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 10640761 is about 3262.0179337337. The cubic root of 10640761 is about 219.9501333258.

The spelling of 10640761 in words is "ten million, six hundred forty thousand, seven hundred sixty-one".