57881789 has 12 divisors (see below), whose sum is σ = 67754304. Its totient is φ = 49301784.

The previous prime is 57881783. The next prime is 57881833. The reversal of 57881789 is 98718875.

It is a happy number.

It is not a de Polignac number, because 57881789 - 2²⁰ = 56833213 is a prime.

It is a super-3 number, since 3×57881789³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57881789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57881783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4364 + ... + 11610.

It is an arithmetic number, because the mean of its divisors is an integer number (5646192).

Almost surely, 2^57881789 is an apocalyptic number.

It is an amenable number.

57881789 is a deficient number, since it is larger than the sum of its proper divisors (9872515).

57881789 is a wasteful number, since it uses less digits than its factorization.

57881789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424 (or 7417 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 53.

The square root of 57881789 is about 7608.0082150324. The cubic root of 57881789 is about 386.8245080749.

The spelling of 57881789 in words is "fifty-seven million, eight hundred eighty-one thousand, seven hundred eighty-nine".