57785723 has 2 divisors, whose sum is σ = 57785724. Its totient is φ = 57785722.

The previous prime is 57785711. The next prime is 57785731. The reversal of 57785723 is 32758775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57785723 - 2⁸ = 57785467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (57784723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28892861 + 28892862.

It is an arithmetic number, because the mean of its divisors is an integer number (28892862).

Almost surely, 2^57785723 is an apocalyptic number.

57785723 is a deficient number, since it is larger than the sum of its proper divisors (1).

57785723 is an equidigital number, since it uses as much as digits as its factorization.

57785723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411600, while the sum is 44.

The square root of 57785723 is about 7601.6921142598. The cubic root of 57785723 is about 386.6103862630.

The spelling of 57785723 in words is "fifty-seven million, seven hundred eighty-five thousand, seven hundred twenty-three".