57878013 has 8 divisors (see below), whose sum is σ = 81710208. Its totient is φ = 36315584.

The previous prime is 57878011. The next prime is 57878021. The reversal of 57878013 is 31087875.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57878013 - 2¹ = 57878011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57878011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567381 + ... + 567482.

It is an arithmetic number, because the mean of its divisors is an integer number (10213776).

Almost surely, 2^57878013 is an apocalyptic number.

It is an amenable number.

57878013 is a deficient number, since it is larger than the sum of its proper divisors (23832195).

57878013 is a wasteful number, since it uses less digits than its factorization.

57878013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134883.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 57878013 is about 7607.7600514212. The cubic root of 57878013 is about 386.8160962115.

The spelling of 57878013 in words is "fifty-seven million, eight hundred seventy-eight thousand, thirteen".