57828823 has 4 divisors (see below), whose sum is σ = 62277208. Its totient is φ = 53380440.

The previous prime is 57828811. The next prime is 57828833. The reversal of 57828823 is 32882875.

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

It is a cyclic number.

It is not a de Polignac number, because 57828823 - 2⁹ = 57828311 is a prime.

It is a super-3 number, since 3×57828823³ (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 57828823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57828833) 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, 2224173 + ... + 2224198.

It is an arithmetic number, because the mean of its divisors is an integer number (15569302).

Almost surely, 2^57828823 is an apocalyptic number.

57828823 is a deficient number, since it is larger than the sum of its proper divisors (4448385).

57828823 is a wasteful number, since it uses less digits than its factorization.

57828823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448384.

The product of its digits is 215040, while the sum is 43.

The square root of 57828823 is about 7604.5264809849. The cubic root of 57828823 is about 386.7064813177.

The spelling of 57828823 in words is "fifty-seven million, eight hundred twenty-eight thousand, eight hundred twenty-three".