12870722 has 8 divisors (see below), whose sum is σ = 19971900. Its totient is φ = 6213424.

The previous prime is 12870721. The next prime is 12870749. The reversal of 12870722 is 22707821.

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 261121 = 3551^2 + 511^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (12870721) 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, 110897 + ... + 111012.

Almost surely, 2^12870722 is an apocalyptic number.

12870722 is a deficient number, since it is larger than the sum of its proper divisors (7101178).

12870722 is a wasteful number, since it uses less digits than its factorization.

12870722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221940.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12870722 is about 3587.5788493077. The cubic root of 12870722 is about 234.3514455025.

The spelling of 12870722 in words is "twelve million, eight hundred seventy thousand, seven hundred twenty-two".