10385891 has 4 divisors (see below), whose sum is σ = 10416000. Its totient is φ = 10355784.

The previous prime is 10385867. The next prime is 10385923. The reversal of 10385891 is 19858301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19858301 = 29 ⋅684769.

It is a cyclic number.

It is not a de Polignac number, because 10385891 - 2¹⁰ = 10384867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10385801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14531 + ... + 15228.

It is an arithmetic number, because the mean of its divisors is an integer number (2604000).

Almost surely, 2^10385891 is an apocalyptic number.

10385891 is a deficient number, since it is larger than the sum of its proper divisors (30109).

10385891 is an equidigital number, since it uses as much as digits as its factorization.

10385891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30108.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 10385891 is about 3222.7148493157. The cubic root of 10385891 is about 218.1798238507.

The spelling of 10385891 in words is "ten million, three hundred eighty-five thousand, eight hundred ninety-one".