4631647 has 4 divisors (see below), whose sum is σ = 4744656. Its totient is φ = 4518640.

The previous prime is 4631639. The next prime is 4631651. The reversal of 4631647 is 7461364.

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

It is a cyclic number.

It is not a de Polignac number, because 4631647 - 2³ = 4631639 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

4631647 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4631147) 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 3 ways as a sum of consecutive naturals, for example, 56443 + ... + 56524.

It is an arithmetic number, because the mean of its divisors is an integer number (1186164).

Almost surely, 2^4631647 is an apocalyptic number.

4631647 is a deficient number, since it is larger than the sum of its proper divisors (113009).

4631647 is a wasteful number, since it uses less digits than its factorization.

4631647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113008.

The product of its digits is 12096, while the sum is 31.

The square root of 4631647 is about 2152.1261580121. The cubic root of 4631647 is about 166.6908715957.

The spelling of 4631647 in words is "four million, six hundred thirty-one thousand, six hundred forty-seven".