10649609 has 2 divisors, whose sum is σ = 10649610. Its totient is φ = 10649608.

The previous prime is 10649593. The next prime is 10649629. The reversal of 10649609 is 90694601.

10649609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10582009 + 67600 = 3253^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 10649609 - 2⁴ = 10649593 is a prime.

It is a super-2 number, since 2×10649609² = 226828343705762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10649629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5324804 + 5324805.

It is an arithmetic number, because the mean of its divisors is an integer number (5324805).

Almost surely, 2^10649609 is an apocalyptic number.

It is an amenable number.

10649609 is a deficient number, since it is larger than the sum of its proper divisors (1).

10649609 is an equidigital number, since it uses as much as digits as its factorization.

10649609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 10649609 is about 3263.3738676407. The cubic root of 10649609 is about 220.0110807091.

The spelling of 10649609 in words is "ten million, six hundred forty-nine thousand, six hundred nine".