427505685 has 16 divisors (see below), whose sum is σ = 696916224. Its totient is φ = 223700672.

The previous prime is 427505657. The next prime is 427505707. The reversal of 427505685 is 586505724.

It is a cyclic number.

It is not a de Polignac number, because 427505685 - 2⁶ = 427505621 is a prime.

It is a super-2 number, since 2×427505685² = 365522221414638450, which contains 22 as substring.

It is a congruent number.

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, 268077 + ... + 269666.

It is an arithmetic number, because the mean of its divisors is an integer number (43557264).

Almost surely, 2^427505685 is an apocalyptic number.

It is an amenable number.

427505685 is a deficient number, since it is larger than the sum of its proper divisors (269410539).

427505685 is a wasteful number, since it uses less digits than its factorization.

427505685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537804.

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 427505685 is about 20676.2106054277. The cubic root of 427505685 is about 753.3219665491.

The spelling of 427505685 in words is "four hundred twenty-seven million, five hundred five thousand, six hundred eighty-five".