4687641 has 24 divisors (see below), whose sum is σ = 7951424. Its totient is φ = 2604960.

The previous prime is 4687637. The next prime is 4687643. The reversal of 4687641 is 1467864.

4687641 is a `hidden beast` number, since 4 + 6 + 8 + 7 + 641 = 666.

It is not a de Polignac number, because 4687641 - 2² = 4687637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4687596 and 4687605.

It is not an unprimeable number, because it can be changed into a prime (4687643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1326 + ... + 3336.

Almost surely, 2^4687641 is an apocalyptic number.

It is an amenable number.

4687641 is a deficient number, since it is larger than the sum of its proper divisors (3263783).

4687641 is a wasteful number, since it uses less digits than its factorization.

4687641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061 (or 2058 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 4687641 is about 2165.0960717714. The cubic root of 4687641 is about 167.3599155490.

The spelling of 4687641 in words is "four million, six hundred eighty-seven thousand, six hundred forty-one".