12748477 has 12 divisors (see below), whose sum is σ = 14936736. Its totient is φ = 10848600.

The previous prime is 12748469. The next prime is 12748481. The reversal of 12748477 is 77484721.

12748477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12748477 - 2³ = 12748469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6538 + ... + 8260.

It is an arithmetic number, because the mean of its divisors is an integer number (1244728).

Almost surely, 2^12748477 is an apocalyptic number.

It is an amenable number.

12748477 is a deficient number, since it is larger than the sum of its proper divisors (2188259).

12748477 is a wasteful number, since it uses less digits than its factorization.

12748477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888 (or 1881 counting only the distinct ones).

The product of its digits is 87808, while the sum is 40.

The square root of 12748477 is about 3570.5009452456. The cubic root of 12748477 is about 233.6071341432.

It can be divided in two parts, 12748 and 477, that added together give a square (13225 = 115²).

The spelling of 12748477 in words is "twelve million, seven hundred forty-eight thousand, four hundred seventy-seven".