10388387 has 4 divisors (see below), whose sum is σ = 10840080. Its totient is φ = 9936696.

The previous prime is 10388381. The next prime is 10388419. The reversal of 10388387 is 78388301.

10388387 is digitally balanced in base 2 and base 3, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 10388387 - 2¹⁴ = 10372003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10388387.

It is not an unprimeable number, because it can be changed into a prime (10388381) 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, 225812 + ... + 225857.

It is an arithmetic number, because the mean of its divisors is an integer number (2710020).

Almost surely, 2^10388387 is an apocalyptic number.

10388387 is a deficient number, since it is larger than the sum of its proper divisors (451693).

10388387 is an equidigital number, since it uses as much as digits as its factorization.

10388387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451692.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 10388387 is about 3223.1020771921. The cubic root of 10388387 is about 218.1973005480.

The spelling of 10388387 in words is "ten million, three hundred eighty-eight thousand, three hundred eighty-seven".