12870737 has 4 divisors (see below), whose sum is σ = 14040816. Its totient is φ = 11700660.

The previous prime is 12870721. The next prime is 12870749. The reversal of 12870737 is 73707821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12870737 - 2⁴ = 12870721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12870697 and 12870706.

It is not an unprimeable number, because it can be changed into a prime (12870337) 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, 585023 + ... + 585044.

It is an arithmetic number, because the mean of its divisors is an integer number (3510204).

Almost surely, 2^12870737 is an apocalyptic number.

It is an amenable number.

12870737 is a deficient number, since it is larger than the sum of its proper divisors (1170079).

12870737 is a wasteful number, since it uses less digits than its factorization.

12870737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170078.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 12870737 is about 3587.5809398535. The cubic root of 12870737 is about 234.3515365430.

It can be divided in two parts, 12870 and 737, that multiplied together give a triangular number (9485190 = T₄₃₅₅).

The spelling of 12870737 in words is "twelve million, eight hundred seventy thousand, seven hundred thirty-seven".