427751047 has 4 divisors (see below), whose sum is σ = 450264280. Its totient is φ = 405237816.

The previous prime is 427751029. The next prime is 427751063. The reversal of 427751047 is 740157724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427751047 - 2⁷ = 427750919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427750997 and 427751015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427751017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11256588 + ... + 11256625.

It is an arithmetic number, because the mean of its divisors is an integer number (112566070).

Almost surely, 2^427751047 is an apocalyptic number.

427751047 is a deficient number, since it is larger than the sum of its proper divisors (22513233).

427751047 is a wasteful number, since it uses less digits than its factorization.

427751047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22513232.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 427751047 is about 20682.1431916521. The cubic root of 427751047 is about 753.4660591624.

The spelling of 427751047 in words is "four hundred twenty-seven million, seven hundred fifty-one thousand, forty-seven".