57884945 has 4 divisors (see below), whose sum is σ = 69461940. Its totient is φ = 46307952.

The previous prime is 57884929. The next prime is 57884971. The reversal of 57884945 is 54948875.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21836929 + 36048016 = 4673^2 + 6004^2 .

It is a cyclic number.

It is not a de Polignac number, because 57884945 - 2⁴ = 57884929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57884893 and 57884902.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5788490 + ... + 5788499.

It is an arithmetic number, because the mean of its divisors is an integer number (17365485).

Almost surely, 2^57884945 is an apocalyptic number.

It is an amenable number.

57884945 is a deficient number, since it is larger than the sum of its proper divisors (11576995).

57884945 is a wasteful number, since it uses less digits than its factorization.

57884945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11576994.

The product of its digits is 1612800, while the sum is 50.

The square root of 57884945 is about 7608.2156252304. The cubic root of 57884945 is about 386.8315384724.

The spelling of 57884945 in words is "fifty-seven million, eight hundred eighty-four thousand, nine hundred forty-five".