12987733 has 8 divisors (see below), whose sum is σ = 14278176. Its totient is φ = 11715600.

The previous prime is 12987713. The next prime is 12987761. The reversal of 12987733 is 33778921.

12987733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12987733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3066 + ... + 5947.

It is an arithmetic number, because the mean of its divisors is an integer number (1784772).

Almost surely, 2^12987733 is an apocalyptic number.

It is an amenable number.

12987733 is a deficient number, since it is larger than the sum of its proper divisors (1290443).

12987733 is a wasteful number, since it uses less digits than its factorization.

12987733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155.

The product of its digits is 63504, while the sum is 40.

The square root of 12987733 is about 3603.8497471454. The cubic root of 12987733 is about 235.0594869776.

The spelling of 12987733 in words is "twelve million, nine hundred eighty-seven thousand, seven hundred thirty-three".