57861643 has 8 divisors (see below), whose sum is σ = 66239712. Its totient is φ = 49511616.

The previous prime is 57861607. The next prime is 57861647. The reversal of 57861643 is 34616875.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57861643 - 2⁹ = 57861131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57861596 and 57861605.

It is not an unprimeable number, because it can be changed into a prime (57861647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380 + ... + 11017.

It is an arithmetic number, because the mean of its divisors is an integer number (8279964).

Almost surely, 2^57861643 is an apocalyptic number.

57861643 is a deficient number, since it is larger than the sum of its proper divisors (8378069).

57861643 is a wasteful number, since it uses less digits than its factorization.

57861643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14021.

The product of its digits is 120960, while the sum is 40.

The square root of 57861643 is about 7606.6841001845. The cubic root of 57861643 is about 386.7796242351.

The spelling of 57861643 in words is "fifty-seven million, eight hundred sixty-one thousand, six hundred forty-three".