57803918 has 4 divisors (see below), whose sum is σ = 86705880. Its totient is φ = 28901958.

The previous prime is 57803917. The next prime is 57803929. The reversal of 57803918 is 81930875.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57803917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14450978 + ... + 14450981.

It is an arithmetic number, because the mean of its divisors is an integer number (21676470).

Almost surely, 2^57803918 is an apocalyptic number.

57803918 is a deficient number, since it is larger than the sum of its proper divisors (28901962).

57803918 is a wasteful number, since it uses less digits than its factorization.

57803918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28901961.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 57803918 is about 7602.8887930838. Note that the first 3 decimals coincide. The cubic root of 57803918 is about 386.6509593633.

The spelling of 57803918 in words is "fifty-seven million, eight hundred three thousand, nine hundred eighteen".