427787724 has 96 divisors (see below), whose sum is σ = 1268248576. Its totient is φ = 109175040.

The previous prime is 427787719. The next prime is 427787761.

427787724 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27534 + ... + 40170.

Almost surely, 2^427787724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427787724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634124288).

427787724 is an abundant number, since it is smaller than the sum of its proper divisors (840460852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427787724 is a wasteful number, since it uses less digits than its factorization.

427787724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12695 (or 12693 counting only the distinct ones).

The product of its digits is 1229312, while the sum is 48.

The square root of 427787724 is about 20683.0298554153. The cubic root of 427787724 is about 753.4875935611.

The spelling of 427787724 in words is "four hundred twenty-seven million, seven hundred eighty-seven thousand, seven hundred twenty-four".