427646 has 8 divisors (see below), whose sum is σ = 658920. Its totient is φ = 208008.

The previous prime is 427621. The next prime is 427681. The reversal of 427646 is 646724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×427646² = 365762202632, which contains 22 as substring.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 2816 + ... + 2963.

It is an arithmetic number, because the mean of its divisors is an integer number (82365).

2⁴²⁷⁶⁴⁶ is an apocalyptic number.

427646 is a deficient number, since it is larger than the sum of its proper divisors (231274).

427646 is a wasteful number, since it uses less digits than its factorization.

427646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818.

The product of its digits is 8064, while the sum is 29.

The square root of 427646 is about 653.9464809906. The cubic root of 427646 is about 75.3404375441.

The spelling of 427646 in words is "four hundred twenty-seven thousand, six hundred forty-six".