427768705 has 64 divisors (see below), whose sum is σ = 692375040. Its totient is φ = 245919744.

The previous prime is 427768657. The next prime is 427768727. The reversal of 427768705 is 507867724.

It is not a de Polignac number, because 427768705 - 2¹³ = 427760513 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 223362 + ... + 225268.

It is an arithmetic number, because the mean of its divisors is an integer number (10818360).

Almost surely, 2^427768705 is an apocalyptic number.

It is an amenable number.

427768705 is a deficient number, since it is larger than the sum of its proper divisors (264606335).

427768705 is a wasteful number, since it uses less digits than its factorization.

427768705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 427768705 is about 20682.5700772414. The cubic root of 427768705 is about 753.4764269691.

The spelling of 427768705 in words is "four hundred twenty-seven million, seven hundred sixty-eight thousand, seven hundred five".