4631687047 has 24 divisors (see below), whose sum is σ = 5181204336. Its totient is φ = 4115432448.

The previous prime is 4631687033. The next prime is 4631687083. The reversal of 4631687047 is 7407861364.

It is a de Polignac number, because none of the positive numbers 2^k-4631687047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4631686988 and 4631687006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4631687647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1724968 + ... + 1727650.

It is an arithmetic number, because the mean of its divisors is an integer number (215883514).

Almost surely, 2^4631687047 is an apocalyptic number.

4631687047 is a deficient number, since it is larger than the sum of its proper divisors (549517289).

4631687047 is a wasteful number, since it uses less digits than its factorization.

4631687047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 4631687047 is about 68056.4989328719. The cubic root of 4631687047 is about 1666.9135201873.

The spelling of 4631687047 in words is "four billion, six hundred thirty-one million, six hundred eighty-seven thousand, forty-seven".