12578788 has 6 divisors (see below), whose sum is σ = 22012886. Its totient is φ = 6289392.

The previous prime is 12578767. The next prime is 12578801. The reversal of 12578788 is 88787521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11614464 + 964324 = 3408^2 + 982^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572345 + ... + 1572352.

Almost surely, 2^12578788 is an apocalyptic number.

It is an amenable number.

12578788 is a deficient number, since it is larger than the sum of its proper divisors (9434098).

12578788 is a wasteful number, since it uses less digits than its factorization.

12578788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144701 (or 3144699 counting only the distinct ones).

The product of its digits is 250880, while the sum is 46.

The square root of 12578788 is about 3546.6587092643. The cubic root of 12578788 is about 232.5660227960.

It can be divided in two parts, 12578 and 788, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 12578788 in words is "twelve million, five hundred seventy-eight thousand, seven hundred eighty-eight".