427499 has 4 divisors (see below), whose sum is σ = 452664. Its totient is φ = 402336.

The previous prime is 427477. The next prime is 427513. The reversal of 427499 is 994724.

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 427499 - 2⁸ = 427243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427429) 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 in 3 ways as a sum of consecutive naturals, for example, 12557 + ... + 12590.

It is an arithmetic number, because the mean of its divisors is an integer number (113166).

2⁴²⁷⁴⁹⁹ is an apocalyptic number.

427499 is a deficient number, since it is larger than the sum of its proper divisors (25165).

427499 is a wasteful number, since it uses less digits than its factorization.

427499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25164.

The product of its digits is 18144, while the sum is 35.

The square root of 427499 is about 653.8340768115. The cubic root of 427499 is about 75.3318039908.

The spelling of 427499 in words is "four hundred twenty-seven thousand, four hundred ninety-nine".