427716657 has 24 divisors (see below), whose sum is σ = 665464800. Its totient is φ = 263850048.

The previous prime is 427716649. The next prime is 427716659. The reversal of 427716657 is 756617724.

It is not a de Polignac number, because 427716657 - 2³ = 427716649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427716659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21732 + ... + 36437.

It is an arithmetic number, because the mean of its divisors is an integer number (27727700).

Almost surely, 2^427716657 is an apocalyptic number.

It is an amenable number.

427716657 is a deficient number, since it is larger than the sum of its proper divisors (237748143).

427716657 is a wasteful number, since it uses less digits than its factorization.

427716657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58237 (or 58234 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 427716657 is about 20681.3117814127. The cubic root of 427716657 is about 753.4458664261.

The spelling of 427716657 in words is "four hundred twenty-seven million, seven hundred sixteen thousand, six hundred fifty-seven".