10399775 has 12 divisors (see below), whose sum is σ = 13245432. Its totient is φ = 8094240.

The previous prime is 10399757. The next prime is 10399789. The reversal of 10399775 is 57799301.

10399775 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10399775 - 2¹⁴ = 10383391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 4697 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (1103786).

Almost surely, 2^10399775 is an apocalyptic number.

10399775 is a deficient number, since it is larger than the sum of its proper divisors (2845657).

10399775 is a wasteful number, since it uses less digits than its factorization.

10399775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11290 (or 11285 counting only the distinct ones).

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 10399775 is about 3224.8682143616. The cubic root of 10399775 is about 218.2770024765.

The spelling of 10399775 in words is "ten million, three hundred ninety-nine thousand, seven hundred seventy-five".