12887537 has 16 divisors (see below), whose sum is σ = 14504448. Its totient is φ = 11370240.

The previous prime is 12887519. The next prime is 12887549. The reversal of 12887537 is 73578821.

12887537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12887537 - 2⁶ = 12887473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12887494 and 12887503.

It is not an unprimeable number, because it can be changed into a prime (12887587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45398 + ... + 45680.

It is an arithmetic number, because the mean of its divisors is an integer number (906528).

Almost surely, 2^12887537 is an apocalyptic number.

It is an amenable number.

12887537 is a deficient number, since it is larger than the sum of its proper divisors (1616911).

12887537 is a wasteful number, since it uses less digits than its factorization.

12887537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440.

The product of its digits is 94080, while the sum is 41.

The square root of 12887537 is about 3589.9215868874. The cubic root of 12887537 is about 234.4534575140.

The spelling of 12887537 in words is "twelve million, eight hundred eighty-seven thousand, five hundred thirty-seven".