4687661 has 12 divisors (see below), whose sum is σ = 5426400. Its totient is φ = 4035240.

The previous prime is 4687651. The next prime is 4687663. The reversal of 4687661 is 1667864.

It is not a de Polignac number, because 4687661 - 2¹⁰ = 4686637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4687663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280 + ... + 3318.

It is an arithmetic number, because the mean of its divisors is an integer number (452200).

Almost surely, 2^4687661 is an apocalyptic number.

It is an amenable number.

4687661 is a deficient number, since it is larger than the sum of its proper divisors (738739).

4687661 is a wasteful number, since it uses less digits than its factorization.

4687661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2069 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 4687661 is about 2165.1006904992. The cubic root of 4687661 is about 167.3601535645.

The spelling of 4687661 in words is "four million, six hundred eighty-seven thousand, six hundred sixty-one".