57684985 has 4 divisors (see below), whose sum is σ = 69221988. Its totient is φ = 46147984.

The previous prime is 57684983. The next prime is 57685003. The reversal of 57684985 is 58948675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35557369 + 22127616 = 5963^2 + 4704^2 .

It is a cyclic number.

It is not a de Polignac number, because 57684985 - 2¹ = 57684983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57684983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5768494 + ... + 5768503.

It is an arithmetic number, because the mean of its divisors is an integer number (17305497).

Almost surely, 2^57684985 is an apocalyptic number.

It is an amenable number.

57684985 is a deficient number, since it is larger than the sum of its proper divisors (11537003).

57684985 is a wasteful number, since it uses less digits than its factorization.

57684985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11537002.

The product of its digits is 2419200, while the sum is 52.

The square root of 57684985 is about 7595.0631992104. The cubic root of 57684985 is about 386.3855959585.

The spelling of 57684985 in words is "fifty-seven million, six hundred eighty-four thousand, nine hundred eighty-five".