10646387 has 2 divisors, whose sum is σ = 10646388. Its totient is φ = 10646386.

The previous prime is 10646381. The next prime is 10646431. The reversal of 10646387 is 78364601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10646387 is a prime.

It is a super-2 number, since 2×10646387² = 226691112307538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10646381) 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, 5323193 + 5323194.

It is an arithmetic number, because the mean of its divisors is an integer number (5323194).

Almost surely, 2^10646387 is an apocalyptic number.

10646387 is a deficient number, since it is larger than the sum of its proper divisors (1).

10646387 is an equidigital number, since it uses as much as digits as its factorization.

10646387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 10646387 is about 3262.8801694209. The cubic root of 10646387 is about 219.9888906236.

The spelling of 10646387 in words is "ten million, six hundred forty-six thousand, three hundred eighty-seven".