77057885 has 8 divisors (see below), whose sum is σ = 93198336. Its totient is φ = 61160400.

The previous prime is 77057881. The next prime is 77057887. The reversal of 77057885 is 58875077.

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

It is not a de Polignac number, because 77057885 - 2² = 77057881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77057881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60041 + ... + 61310.

It is an arithmetic number, because the mean of its divisors is an integer number (11649792).

Almost surely, 2^77057885 is an apocalyptic number.

It is an amenable number.

77057885 is a deficient number, since it is larger than the sum of its proper divisors (16140451).

77057885 is a wasteful number, since it uses less digits than its factorization.

77057885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121483.

The product of its (nonzero) digits is 548800, while the sum is 47.

The square root of 77057885 is about 8778.2620717315. The cubic root of 77057885 is about 425.5386664595.

The spelling of 77057885 in words is "seventy-seven million, fifty-seven thousand, eight hundred eighty-five".