10231687 has 2 divisors, whose sum is σ = 10231688. Its totient is φ = 10231686.

The previous prime is 10231667. The next prime is 10231691. The reversal of 10231687 is 78613201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10231687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10231667) 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, 5115843 + 5115844.

It is an arithmetic number, because the mean of its divisors is an integer number (5115844).

Almost surely, 2^10231687 is an apocalyptic number.

10231687 is a deficient number, since it is larger than the sum of its proper divisors (1).

10231687 is an equidigital number, since it uses as much as digits as its factorization.

10231687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 10231687 is about 3198.7008300246. The cubic root of 10231687 is about 217.0946305187.

Adding to 10231687 its reverse (78613201), we get a palindrome (88844888).

The spelling of 10231687 in words is "ten million, two hundred thirty-one thousand, six hundred eighty-seven".