12704506 has 8 divisors (see below), whose sum is σ = 19521684. Its totient is φ = 6197280.

The previous prime is 12704467. The next prime is 12704507. The reversal of 12704506 is 60540721.

It can be written as a sum of positive squares in 2 ways, for example, as 12666481 + 38025 = 3559^2 + 195^2 .

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

It is a super-2 number, since 2×12704506² = 322808945408072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12704507) 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, 77385 + ... + 77548.

Almost surely, 2^12704506 is an apocalyptic number.

12704506 is a deficient number, since it is larger than the sum of its proper divisors (6817178).

12704506 is a wasteful number, since it uses less digits than its factorization.

12704506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154976.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12704506 is about 3564.3380872190. The cubic root of 12704506 is about 233.3382452481.

It can be divided in two parts, 1270 and 4506, that added together give a square (5776 = 76²).

The spelling of 12704506 in words is "twelve million, seven hundred four thousand, five hundred six".