427911728 has 10 divisors (see below), whose sum is σ = 829079004. Its totient is φ = 213955856.

The previous prime is 427911721. The next prime is 427911739. The reversal of 427911728 is 827119724.

It is not an unprimeable number, because it can be changed into a prime (427911721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13372226 + ... + 13372257.

Almost surely, 2^427911728 is an apocalyptic number.

It is an amenable number.

427911728 is a deficient number, since it is larger than the sum of its proper divisors (401167276).

427911728 is a wasteful number, since it uses less digits than its factorization.

427911728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26744491 (or 26744485 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 427911728 is about 20686.0273614824. The cubic root of 427911728 is about 753.5603916988.

The spelling of 427911728 in words is "four hundred twenty-seven million, nine hundred eleven thousand, seven hundred twenty-eight".