4561687 has 4 divisors (see below), whose sum is σ = 4912600. Its totient is φ = 4210776.

The previous prime is 4561663. The next prime is 4561723. The reversal of 4561687 is 7861654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7861654 = 2 ⋅3930827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4561687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561607) 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, 175437 + ... + 175462.

It is an arithmetic number, because the mean of its divisors is an integer number (1228150).

Almost surely, 2^4561687 is an apocalyptic number.

4561687 is a deficient number, since it is larger than the sum of its proper divisors (350913).

4561687 is a wasteful number, since it uses less digits than its factorization.

4561687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350912.

The product of its digits is 40320, while the sum is 37.

The square root of 4561687 is about 2135.8106189454. The cubic root of 4561687 is about 165.8473338740.

The spelling of 4561687 in words is "four million, five hundred sixty-one thousand, six hundred eighty-seven".