57078829 has 4 divisors (see below), whose sum is σ = 57612384. Its totient is φ = 56545276.

The previous prime is 57078823. The next prime is 57078871. The reversal of 57078829 is 92887075.

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 57078829 - 2⁵ = 57078797 is a prime.

It is a super-2 number, since 2×57078829² = 6515985440022482, which contains 22 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 (57078823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266617 + ... + 266830.

It is an arithmetic number, because the mean of its divisors is an integer number (14403096).

Almost surely, 2^57078829 is an apocalyptic number.

It is an amenable number.

57078829 is a deficient number, since it is larger than the sum of its proper divisors (533555).

57078829 is a wasteful number, since it uses less digits than its factorization.

57078829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533554.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 57078829 is about 7555.0532096075. The cubic root of 57078829 is about 385.0274428069.

The spelling of 57078829 in words is "fifty-seven million, seventy-eight thousand, eight hundred twenty-nine".