57878471 has 8 divisors (see below), whose sum is σ = 67934880. Its totient is φ = 48269088.

The previous prime is 57878467. The next prime is 57878477. The reversal of 57878471 is 17487875.

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

It is not a de Polignac number, because 57878471 - 2² = 57878467 is a prime.

It is a super-3 number, since 3×57878471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57878477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111476 + ... + 111993.

It is an arithmetic number, because the mean of its divisors is an integer number (8491860).

Almost surely, 2^57878471 is an apocalyptic number.

57878471 is a deficient number, since it is larger than the sum of its proper divisors (10056409).

57878471 is a wasteful number, since it uses less digits than its factorization.

57878471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223513.

The product of its digits is 439040, while the sum is 47.

The square root of 57878471 is about 7607.7901522058. The cubic root of 57878471 is about 386.8171165259.

The spelling of 57878471 in words is "fifty-seven million, eight hundred seventy-eight thousand, four hundred seventy-one".