10265987 has 2 divisors, whose sum is σ = 10265988. Its totient is φ = 10265986.

The previous prime is 10265939. The next prime is 10265999. The reversal of 10265987 is 78956201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10265987 - 2⁶ = 10265923 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10265987.

It is not a weakly prime, because it can be changed into another prime (10265287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5132993 + 5132994.

It is an arithmetic number, because the mean of its divisors is an integer number (5132994).

Almost surely, 2^10265987 is an apocalyptic number.

10265987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10265987 is an equidigital number, since it uses as much as digits as its factorization.

10265987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 10265987 is about 3204.0578958564. The cubic root of 10265987 is about 217.3369509499.

The spelling of 10265987 in words is "ten million, two hundred sixty-five thousand, nine hundred eighty-seven".