12603887 has 4 divisors (see below), whose sum is σ = 13010496. Its totient is φ = 12197280.

The previous prime is 12603883. The next prime is 12603901. The reversal of 12603887 is 78830621.

12603887 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 a cyclic number.

It is not a de Polignac number, because 12603887 - 2² = 12603883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12603883) 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, 203258 + ... + 203319.

It is an arithmetic number, because the mean of its divisors is an integer number (3252624).

Almost surely, 2^12603887 is an apocalyptic number.

12603887 is a deficient number, since it is larger than the sum of its proper divisors (406609).

12603887 is an equidigital number, since it uses as much as digits as its factorization.

12603887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406608.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12603887 is about 3550.1953467380. The cubic root of 12603887 is about 232.7206030443.

The spelling of 12603887 in words is "twelve million, six hundred three thousand, eight hundred eighty-seven".