57779977 has 8 divisors (see below), whose sum is σ = 61389000. Its totient is φ = 54278784.

The previous prime is 57779971. The next prime is 57779987. The reversal of 57779977 is 77997775.

57779977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41100921 + 16679056 = 6411^2 + 4084^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57779977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57779971) 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 7 ways as a sum of consecutive naturals, for example, 25852 + ... + 27997.

It is an arithmetic number, because the mean of its divisors is an integer number (7673625).

Almost surely, 2^57779977 is an apocalyptic number.

It is an amenable number.

57779977 is a deficient number, since it is larger than the sum of its proper divisors (3609023).

57779977 is a wasteful number, since it uses less digits than its factorization.

57779977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53915.

The product of its digits is 6806835, while the sum is 58.

The square root of 57779977 is about 7601.3141626958. The cubic root of 57779977 is about 386.5975714661.

The spelling of 57779977 in words is "fifty-seven million, seven hundred seventy-nine thousand, nine hundred seventy-seven".