427812665 has 16 divisors (see below), whose sum is σ = 588816000. Its totient is φ = 292306560.

The previous prime is 427812653. The next prime is 427812691. The reversal of 427812665 is 566218724.

It is not a de Polignac number, because 427812665 - 2¹⁰ = 427811641 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11915 + ... + 31584.

It is an arithmetic number, because the mean of its divisors is an integer number (36801000).

Almost surely, 2^427812665 is an apocalyptic number.

It is an amenable number.

427812665 is a deficient number, since it is larger than the sum of its proper divisors (161003335).

427812665 is a wasteful number, since it uses less digits than its factorization.

427812665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43792.

The product of its digits is 161280, while the sum is 41.

The square root of 427812665 is about 20683.6327805345. The cubic root of 427812665 is about 753.5022366250.

The spelling of 427812665 in words is "four hundred twenty-seven million, eight hundred twelve thousand, six hundred sixty-five".