427091885 has 12 divisors (see below), whose sum is σ = 563338524. Its totient is φ = 310611840.

The previous prime is 427091879. The next prime is 427091893. The reversal of 427091885 is 588190724.

It can be written as a sum of positive squares in 2 ways, for example, as 286218724 + 140873161 = 16918^2 + 11869^2 .

It is not a de Polignac number, because 427091885 - 2²² = 422897581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352364 + ... + 353573.

It is an arithmetic number, because the mean of its divisors is an integer number (46944877).

Almost surely, 2^427091885 is an apocalyptic number.

It is an amenable number.

427091885 is a deficient number, since it is larger than the sum of its proper divisors (136246639).

427091885 is a wasteful number, since it uses less digits than its factorization.

427091885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705964 (or 705953 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 427091885 is about 20666.2015135825. The cubic root of 427091885 is about 753.0788311774.

The spelling of 427091885 in words is "four hundred twenty-seven million, ninety-one thousand, eight hundred eighty-five".