12577028 has 6 divisors (see below), whose sum is σ = 22009806. Its totient is φ = 6288512.

The previous prime is 12576989. The next prime is 12577043. The reversal of 12577028 is 82077521.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 200704 = 3518^2 + 448^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12576985 and 12577003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572125 + ... + 1572132.

It is an arithmetic number, because the mean of its divisors is an integer number (3668301).

Almost surely, 2^12577028 is an apocalyptic number.

It is an amenable number.

12577028 is a deficient number, since it is larger than the sum of its proper divisors (9432778).

12577028 is a wasteful number, since it uses less digits than its factorization.

12577028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144261 (or 3144259 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 12577028 is about 3546.4105797271. The cubic root of 12577028 is about 232.5551755588. Note that the first 3 decimals are identical.

The spelling of 12577028 in words is "twelve million, five hundred seventy-seven thousand, twenty-eight".