57426787 has 16 divisors (see below), whose sum is σ = 65479680. Its totient is φ = 49888800.

The previous prime is 57426781. The next prime is 57426821. The reversal of 57426787 is 78762475.

57426787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 57426787 - 2¹⁹ = 56902499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57426781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27289 + ... + 29317.

It is an arithmetic number, because the mean of its divisors is an integer number (4092480).

Almost surely, 2^57426787 is an apocalyptic number.

57426787 is a deficient number, since it is larger than the sum of its proper divisors (8052893).

57426787 is a wasteful number, since it uses less digits than its factorization.

57426787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154.

The product of its digits is 658560, while the sum is 46.

The square root of 57426787 is about 7578.0463841283. The cubic root of 57426787 is about 385.8082463691.

The spelling of 57426787 in words is "fifty-seven million, four hundred twenty-six thousand, seven hundred eighty-seven".