10640369 has 2 divisors, whose sum is σ = 10640370. Its totient is φ = 10640368.

The previous prime is 10640363. The next prime is 10640381. The reversal of 10640369 is 96304601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 12769 = 3260^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 10640369 - 2⁴ = 10640353 is a prime.

It is a super-2 number, since 2×10640369² = 226434904912322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₇₀₄₂₇₉ and since 10640369 and 704279 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (10640363) 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, 5320184 + 5320185.

It is an arithmetic number, because the mean of its divisors is an integer number (5320185).

Almost surely, 2^10640369 is an apocalyptic number.

It is an amenable number.

10640369 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640369 is an equidigital number, since it uses as much as digits as its factorization.

10640369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 10640369 is about 3261.9578476737. The cubic root of 10640369 is about 219.9474323439.

The spelling of 10640369 in words is "ten million, six hundred forty thousand, three hundred sixty-nine".