10399687 has 2 divisors, whose sum is σ = 10399688. Its totient is φ = 10399686.

The previous prime is 10399637. The next prime is 10399693. The reversal of 10399687 is 78699301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10399687 - 2⁷ = 10399559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10399637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5199843 + 5199844.

It is an arithmetic number, because the mean of its divisors is an integer number (5199844).

Almost surely, 2^10399687 is an apocalyptic number.

10399687 is a deficient number, since it is larger than the sum of its proper divisors (1).

10399687 is an equidigital number, since it uses as much as digits as its factorization.

10399687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 10399687 is about 3224.8545703644. The cubic root of 10399687 is about 218.2763868084.

The spelling of 10399687 in words is "ten million, three hundred ninety-nine thousand, six hundred eighty-seven".