57827989 has 4 divisors (see below), whose sum is σ = 59693440. Its totient is φ = 55962540.

The previous prime is 57827981. The next prime is 57827993. The reversal of 57827989 is 98972875.

57827989 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57827989 - 2³ = 57827981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57827981) 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, 932679 + ... + 932740.

It is an arithmetic number, because the mean of its divisors is an integer number (14923360).

Almost surely, 2^57827989 is an apocalyptic number.

It is an amenable number.

57827989 is a deficient number, since it is larger than the sum of its proper divisors (1865451).

57827989 is a wasteful number, since it uses less digits than its factorization.

57827989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865450.

The product of its digits is 2540160, while the sum is 55.

The square root of 57827989 is about 7604.4716450257. The cubic root of 57827989 is about 386.7046222980.

The spelling of 57827989 in words is "fifty-seven million, eight hundred twenty-seven thousand, nine hundred eighty-nine".