12602728 has 8 divisors (see below), whose sum is σ = 23630130. Its totient is φ = 6301360.

The previous prime is 12602717. The next prime is 12602743. The reversal of 12602728 is 82720621.

It can be written as a sum of positive squares in only one way, i.e., 12264004 + 338724 = 3502^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12602696 and 12602705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 787663 + ... + 787678.

Almost surely, 2^12602728 is an apocalyptic number.

It is an amenable number.

12602728 is a deficient number, since it is larger than the sum of its proper divisors (11027402).

12602728 is a wasteful number, since it uses less digits than its factorization.

12602728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575347 (or 1575343 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 12602728 is about 3550.0321125308. The cubic root of 12602728 is about 232.7134694924.

The spelling of 12602728 in words is "twelve million, six hundred two thousand, seven hundred twenty-eight".