57630747 has 4 divisors (see below), whose sum is σ = 76841000. Its totient is φ = 38420496.

The previous prime is 57630721. The next prime is 57630751. The reversal of 57630747 is 74703675.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57630747 - 2¹¹ = 57628699 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (57630247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9605122 + ... + 9605127.

It is an arithmetic number, because the mean of its divisors is an integer number (19210250).

Almost surely, 2^57630747 is an apocalyptic number.

57630747 is a deficient number, since it is larger than the sum of its proper divisors (19210253).

57630747 is a wasteful number, since it uses less digits than its factorization.

57630747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19210252.

The product of its (nonzero) digits is 123480, while the sum is 39.

The square root of 57630747 is about 7591.4917506377. The cubic root of 57630747 is about 386.2644589847.

The spelling of 57630747 in words is "fifty-seven million, six hundred thirty thousand, seven hundred forty-seven".