4659391 has 4 divisors (see below), whose sum is σ = 5082984. Its totient is φ = 4235800.

The previous prime is 4659367. The next prime is 4659443. The reversal of 4659391 is 1939564.

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 4659391 - 2¹¹ = 4657343 is a prime.

It is a Duffinian number.

4659391 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4659391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4659311) 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, 211780 + ... + 211801.

It is an arithmetic number, because the mean of its divisors is an integer number (1270746).

Almost surely, 2^4659391 is an apocalyptic number.

4659391 is a deficient number, since it is larger than the sum of its proper divisors (423593).

4659391 is a wasteful number, since it uses less digits than its factorization.

4659391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423592.

The product of its digits is 29160, while the sum is 37.

The square root of 4659391 is about 2158.5622529823. The cubic root of 4659391 is about 167.0230405539.

It can be divided in two parts, 4659 and 391, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4659391 in words is "four million, six hundred fifty-nine thousand, three hundred ninety-one".