4993591 has 2 divisors, whose sum is σ = 4993592. Its totient is φ = 4993590.

The previous prime is 4993579. The next prime is 4993603. The reversal of 4993591 is 1953994.

It is a balanced prime because it is at equal distance from previous prime (4993579) and next prime (4993603).

It is a cyclic number.

It is not a de Polignac number, because 4993591 - 2⁵ = 4993559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4990591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496795 + 2496796.

It is an arithmetic number, because the mean of its divisors is an integer number (2496796).

Almost surely, 2^4993591 is an apocalyptic number.

4993591 is a deficient number, since it is larger than the sum of its proper divisors (1).

4993591 is an equidigital number, since it uses as much as digits as its factorization.

4993591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 4993591 is about 2234.6344220028. The cubic root of 4993591 is about 170.9245018564.

The spelling of 4993591 in words is "four million, nine hundred ninety-three thousand, five hundred ninety-one".