427828724 has 12 divisors (see below), whose sum is σ = 750533700. Its totient is φ = 213390528.

The previous prime is 427828703. The next prime is 427828741.

427828724 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 160833124 + 266995600 = 12682^2 + 16340^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129119 + ... + 132390.

It is an arithmetic number, because the mean of its divisors is an integer number (62544475).

Almost surely, 2^427828724 is an apocalyptic number.

It is an amenable number.

427828724 is a deficient number, since it is larger than the sum of its proper divisors (322704976).

427828724 is a wasteful number, since it uses less digits than its factorization.

427828724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261922 (or 261920 counting only the distinct ones).

The product of its digits is 401408, while the sum is 44.

The square root of 427828724 is about 20684.0209823912. The cubic root of 427828724 is about 753.5116646932.

The spelling of 427828724 in words is "four hundred twenty-seven million, eight hundred twenty-eight thousand, seven hundred twenty-four".