427145487 has 4 divisors (see below), whose sum is σ = 569527320. Its totient is φ = 284763656.

The previous prime is 427145483. The next prime is 427145491. The reversal of 427145487 is 784541724.

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

It is an interprime number because it is at equal distance from previous prime (427145483) and next prime (427145491).

It is a cyclic number.

It is not a de Polignac number, because 427145487 - 2² = 427145483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427145483) 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 3 ways as a sum of consecutive naturals, for example, 71190912 + ... + 71190917.

It is an arithmetic number, because the mean of its divisors is an integer number (142381830).

Almost surely, 2^427145487 is an apocalyptic number.

427145487 is a deficient number, since it is larger than the sum of its proper divisors (142381833).

427145487 is a wasteful number, since it uses less digits than its factorization.

427145487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142381832.

The product of its digits is 250880, while the sum is 42.

The square root of 427145487 is about 20667.4983246643. The cubic root of 427145487 is about 753.1103348143.

The spelling of 427145487 in words is "four hundred twenty-seven million, one hundred forty-five thousand, four hundred eighty-seven".