10387855 has 4 divisors (see below), whose sum is σ = 12465432. Its totient is φ = 8310280.

The previous prime is 10387849. The next prime is 10387877. The reversal of 10387855 is 55878301.

10387855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10387855 - 2³ = 10387847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038781 + ... + 1038790.

It is an arithmetic number, because the mean of its divisors is an integer number (3116358).

Almost surely, 2^10387855 is an apocalyptic number.

10387855 is a deficient number, since it is larger than the sum of its proper divisors (2077577).

10387855 is an equidigital number, since it uses as much as digits as its factorization.

10387855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077576.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 10387855 is about 3223.0195469466. The cubic root of 10387855 is about 218.1935757816.

The spelling of 10387855 in words is "ten million, three hundred eighty-seven thousand, eight hundred fifty-five".