427975 has 24 divisors (see below), whose sum is σ = 602640. Its totient is φ = 299520.

The previous prime is 427969. The next prime is 427991. The reversal of 427975 is 579724.

It is not a de Polignac number, because 427975 - 2³ = 427967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427975.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 8049 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (25110).

2⁴²⁷⁹⁷⁵ is an apocalyptic number.

427975 is a deficient number, since it is larger than the sum of its proper divisors (174665).

427975 is a wasteful number, since it uses less digits than its factorization.

427975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 94 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 427975 is about 654.1979822653. The cubic root of 427975 is about 75.3597530919.

The spelling of 427975 in words is "four hundred twenty-seven thousand, nine hundred seventy-five".