4687307857 has 4 divisors (see below), whose sum is σ = 4699874740. Its totient is φ = 4674740976.

The previous prime is 4687307851. The next prime is 4687307899. The reversal of 4687307857 is 7587037864.

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 2838651841 + 1848656016 = 53279^2 + 42996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4687307857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4687307798 and 4687307807.

It is not an unprimeable number, because it can be changed into a prime (4687307851) 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, 6282882 + ... + 6283627.

It is an arithmetic number, because the mean of its divisors is an integer number (1174968685).

Almost surely, 2^4687307857 is an apocalyptic number.

It is an amenable number.

4687307857 is a deficient number, since it is larger than the sum of its proper divisors (12566883).

4687307857 is a wasteful number, since it uses less digits than its factorization.

4687307857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566882.

The product of its (nonzero) digits is 7902720, while the sum is 55.

The square root of 4687307857 is about 68463.9164596943. The cubic root of 4687307857 is about 1673.5595078965.

The spelling of 4687307857 in words is "four billion, six hundred eighty-seven million, three hundred seven thousand, eight hundred fifty-seven".