427885385 has 8 divisors (see below), whose sum is σ = 513952776. Its totient is φ = 341981440.

The previous prime is 427885373. The next prime is 427885391. The reversal of 427885385 is 583588724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 216590089 + 211295296 = 14717^2 + 14536^2 .

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

It is not a de Polignac number, because 427885385 - 2⁴ = 427885369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35024 + ... + 45633.

It is an arithmetic number, because the mean of its divisors is an integer number (64244097).

Almost surely, 2^427885385 is an apocalyptic number.

It is an amenable number.

427885385 is a deficient number, since it is larger than the sum of its proper divisors (86067391).

427885385 is a wasteful number, since it uses less digits than its factorization.

427885385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81723.

The product of its digits is 2150400, while the sum is 50.

The square root of 427885385 is about 20685.3906175349. The cubic root of 427885385 is about 753.5449278796.

The spelling of 427885385 in words is "four hundred twenty-seven million, eight hundred eighty-five thousand, three hundred eighty-five".