4658991 has 4 divisors (see below), whose sum is σ = 6211992. Its totient is φ = 3105992.

The previous prime is 4658989. The next prime is 4659013. The reversal of 4658991 is 1998564.

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 4658991 - 2¹ = 4658989 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4658911) 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, 776496 + ... + 776501.

It is an arithmetic number, because the mean of its divisors is an integer number (1552998).

Almost surely, 2^4658991 is an apocalyptic number.

4658991 is a deficient number, since it is larger than the sum of its proper divisors (1553001).

4658991 is a wasteful number, since it uses less digits than its factorization.

4658991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553000.

The product of its digits is 77760, while the sum is 42.

The square root of 4658991 is about 2158.4695967282. The cubic root of 4658991 is about 167.0182608786.

The spelling of 4658991 in words is "four million, six hundred fifty-eight thousand, nine hundred ninety-one".