10649867 has 2 divisors, whose sum is σ = 10649868. Its totient is φ = 10649866.

The previous prime is 10649843. The next prime is 10649869. The reversal of 10649867 is 76894601.

10649867 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10649867 - 2¹⁰ = 10648843 is a prime.

It is a super-2 number, since 2×10649867² = 226839334235378, which contains 22 as substring.

Together with 10649869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10649869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5324933 + 5324934.

It is an arithmetic number, because the mean of its divisors is an integer number (5324934).

Almost surely, 2^10649867 is an apocalyptic number.

10649867 is a deficient number, since it is larger than the sum of its proper divisors (1).

10649867 is an equidigital number, since it uses as much as digits as its factorization.

10649867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 10649867 is about 3263.4133970430. The cubic root of 10649867 is about 220.0128573753.

The spelling of 10649867 in words is "ten million, six hundred forty-nine thousand, eight hundred sixty-seven".