427545878 has 16 divisors (see below), whose sum is σ = 659455344. Its totient is φ = 207741600.

The previous prime is 427545871. The next prime is 427545907. The reversal of 427545878 is 878545724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427545871) 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 7 ways as a sum of consecutive naturals, for example, 67028 + ... + 73128.

It is an arithmetic number, because the mean of its divisors is an integer number (41215959).

Almost surely, 2^427545878 is an apocalyptic number.

427545878 is a deficient number, since it is larger than the sum of its proper divisors (231909466).

427545878 is a wasteful number, since it uses less digits than its factorization.

427545878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7087.

The product of its digits is 2508800, while the sum is 50.

The square root of 427545878 is about 20677.1825450181. The cubic root of 427545878 is about 753.3455742827.

The spelling of 427545878 in words is "four hundred twenty-seven million, five hundred forty-five thousand, eight hundred seventy-eight".