57630779 has 2 divisors, whose sum is σ = 57630780. Its totient is φ = 57630778.

The previous prime is 57630773. The next prime is 57630803. The reversal of 57630779 is 97703675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57630779 - 2⁴ = 57630763 is a prime.

It is not a weakly prime, because it can be changed into another prime (57630773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28815389 + 28815390.

It is an arithmetic number, because the mean of its divisors is an integer number (28815390).

Almost surely, 2^57630779 is an apocalyptic number.

57630779 is a deficient number, since it is larger than the sum of its proper divisors (1).

57630779 is an equidigital number, since it uses as much as digits as its factorization.

57630779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 57630779 is about 7591.4938582600. The cubic root of 57630779 is about 386.2645304770.

The spelling of 57630779 in words is "fifty-seven million, six hundred thirty thousand, seven hundred seventy-nine".