1228608477 has 12 divisors (see below), whose sum is σ = 1776213504. Its totient is φ = 818353800.

The previous prime is 1228608473. The next prime is 1228608487. The reversal of 1228608477 is 7748068221.

1228608477 is a `hidden beast` number, since 12 + 28 + 608 + 4 + 7 + 7 = 666.

It is not a de Polignac number, because 1228608477 - 2² = 1228608473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228608473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48943 + ... + 69660.

It is an arithmetic number, because the mean of its divisors is an integer number (148017792).

Almost surely, 2^1228608477 is an apocalyptic number.

It is an amenable number.

1228608477 is a deficient number, since it is larger than the sum of its proper divisors (547605027).

1228608477 is a wasteful number, since it uses less digits than its factorization.

1228608477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119760 (or 119757 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1228608477 is about 35051.5117648298. The cubic root of 1228608477 is about 1071.0370697545.

The spelling of 1228608477 in words is "one billion, two hundred twenty-eight million, six hundred eight thousand, four hundred seventy-seven".