427705744 has 10 divisors (see below), whose sum is σ = 828679910. Its totient is φ = 213852864.

The previous prime is 427705741. The next prime is 427705777. The reversal of 427705744 is 447507724.

It can be written as a sum of positive squares in only one way, i.e., 289408144 + 138297600 = 17012^2 + 11760^2 .

It is a junction number, because it is equal to n+sod(n) for n = 427705697 and 427705706.

It is not an unprimeable number, because it can be changed into a prime (427705741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13365789 + ... + 13365820.

It is an arithmetic number, because the mean of its divisors is an integer number (82867991).

Almost surely, 2^427705744 is an apocalyptic number.

It is an amenable number.

427705744 is a deficient number, since it is larger than the sum of its proper divisors (400974166).

427705744 is a wasteful number, since it uses less digits than its factorization.

427705744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26731617 (or 26731611 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 40.

The square root of 427705744 is about 20681.0479425004. The cubic root of 427705744 is about 753.4394584264.

The spelling of 427705744 in words is "four hundred twenty-seven million, seven hundred five thousand, seven hundred forty-four".