12732861 has 8 divisors (see below), whose sum is σ = 16996000. Its totient is φ = 8479152.

The previous prime is 12732833. The next prime is 12732877. The reversal of 12732861 is 16823721.

12732861 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 12732861 - 2⁵ = 12732829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12732821) 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, 1890 + ... + 5388.

It is an arithmetic number, because the mean of its divisors is an integer number (2124500).

Almost surely, 2^12732861 is an apocalyptic number.

It is an amenable number.

12732861 is a deficient number, since it is larger than the sum of its proper divisors (4263139).

12732861 is a wasteful number, since it uses less digits than its factorization.

12732861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715.

The product of its digits is 4032, while the sum is 30.

The square root of 12732861 is about 3568.3134671719. The cubic root of 12732861 is about 233.5117109922.

The spelling of 12732861 in words is "twelve million, seven hundred thirty-two thousand, eight hundred sixty-one".