57428735 has 72 divisors (see below), whose sum is σ = 92627280. Its totient is φ = 33965568.

The previous prime is 57428717. The next prime is 57428759. The reversal of 57428735 is 53782475.

It is not a de Polignac number, because 57428735 - 2⁸ = 57428479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57428692 and 57428701.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 786659 + ... + 786731.

It is an arithmetic number, because the mean of its divisors is an integer number (1286490).

Almost surely, 2^57428735 is an apocalyptic number.

57428735 is a deficient number, since it is larger than the sum of its proper divisors (35198545).

57428735 is a wasteful number, since it uses less digits than its factorization.

57428735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 117 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 57428735 is about 7578.1749122068. The cubic root of 57428735 is about 385.8126087117.

The spelling of 57428735 in words is "fifty-seven million, four hundred twenty-eight thousand, seven hundred thirty-five".