427882691 has 6 divisors (see below), whose sum is σ = 435296580. Its totient is φ = 420474248.

The previous prime is 427882687. The next prime is 427882729. The reversal of 427882691 is 196288724.

It is a happy number.

It is not a de Polignac number, because 427882691 - 2² = 427882687 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (427882681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157541 + ... + 160233.

It is an arithmetic number, because the mean of its divisors is an integer number (72549430).

Almost surely, 2^427882691 is an apocalyptic number.

427882691 is a deficient number, since it is larger than the sum of its proper divisors (7413889).

427882691 is an frugal number, since it uses more digits than its factorization.

427882691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445 (or 2752 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 427882691 is about 20685.3254990102. The cubic root of 427882691 is about 753.5433464169.

The spelling of 427882691 in words is "four hundred twenty-seven million, eight hundred eighty-two thousand, six hundred ninety-one".