12487936 has 18 divisors (see below), whose sum is σ = 24927602. Its totient is φ = 6243840.

The previous prime is 12487933. The next prime is 12487949. The reversal of 12487936 is 63978421.

It can be written as a sum of positive squares in only one way, i.e., 7398400 + 5089536 = 2720^2 + 2256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12487933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24135 + ... + 24646.

Almost surely, 2^12487936 is an apocalyptic number.

12487936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12487936 is a deficient number, since it is larger than the sum of its proper divisors (12439666).

12487936 is an frugal number, since it uses more digits than its factorization.

12487936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48797 (or 48783 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 12487936 is about 3533.8273868428. The cubic root of 12487936 is about 232.0047561451.

The spelling of 12487936 in words is "twelve million, four hundred eighty-seven thousand, nine hundred thirty-six".