427705269 has 4 divisors (see below), whose sum is σ = 570273696. Its totient is φ = 285136844.

The previous prime is 427705249. The next prime is 427705273. The reversal of 427705269 is 962507724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427705269 - 2¹² = 427701173 is a prime.

It is a super-2 number, since 2×427705269² = 365863594260724722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 427705269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427705249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71284209 + ... + 71284214.

It is an arithmetic number, because the mean of its divisors is an integer number (142568424).

Almost surely, 2^427705269 is an apocalyptic number.

It is an amenable number.

427705269 is a deficient number, since it is larger than the sum of its proper divisors (142568427).

427705269 is a wasteful number, since it uses less digits than its factorization.

427705269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142568426.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 427705269 is about 20681.0364585530. The cubic root of 427705269 is about 753.4391795089.

The spelling of 427705269 in words is "four hundred twenty-seven million, seven hundred five thousand, two hundred sixty-nine".