57820963 has 4 divisors (see below), whose sum is σ = 58095208. Its totient is φ = 57546720.

The previous prime is 57820949. The next prime is 57820991. The reversal of 57820963 is 36902875.

57820963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57820963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57820943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136806 + ... + 137227.

It is an arithmetic number, because the mean of its divisors is an integer number (14523802).

Almost surely, 2^57820963 is an apocalyptic number.

57820963 is a deficient number, since it is larger than the sum of its proper divisors (274245).

57820963 is a wasteful number, since it uses less digits than its factorization.

57820963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274244.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 57820963 is about 7604.0096659591. The cubic root of 57820963 is about 386.6889603509.

The spelling of 57820963 in words is "fifty-seven million, eight hundred twenty thousand, nine hundred sixty-three".