57628787 has 2 divisors, whose sum is σ = 57628788. Its totient is φ = 57628786.

The previous prime is 57628751. The next prime is 57628789. The reversal of 57628787 is 78782675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57628787 - 2⁶ = 57628723 is a prime.

Together with 57628789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57628789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28814393 + 28814394.

It is an arithmetic number, because the mean of its divisors is an integer number (28814394).

Almost surely, 2^57628787 is an apocalyptic number.

57628787 is a deficient number, since it is larger than the sum of its proper divisors (1).

57628787 is an equidigital number, since it uses as much as digits as its factorization.

57628787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1317120, while the sum is 50.

The square root of 57628787 is about 7591.3626576524. The cubic root of 57628787 is about 386.2600800321.

The spelling of 57628787 in words is "fifty-seven million, six hundred twenty-eight thousand, seven hundred eighty-seven".