4591687 has 2 divisors, whose sum is σ = 4591688. Its totient is φ = 4591686.

The previous prime is 4591667. The next prime is 4591709. The reversal of 4591687 is 7861954.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4591687 - 2¹¹ = 4589639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4591607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295843 + 2295844.

It is an arithmetic number, because the mean of its divisors is an integer number (2295844).

Almost surely, 2^4591687 is an apocalyptic number.

4591687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4591687 is an equidigital number, since it uses as much as digits as its factorization.

4591687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 4591687 is about 2142.8222044771. The cubic root of 4591687 is about 166.2101055649.

The spelling of 4591687 in words is "four million, five hundred ninety-one thousand, six hundred eighty-seven".