4912591 has 2 divisors, whose sum is σ = 4912592. Its totient is φ = 4912590.

The previous prime is 4912559. The next prime is 4912613. The reversal of 4912591 is 1952194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4912591 - 2⁵ = 4912559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4912511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2456295 + 2456296.

It is an arithmetic number, because the mean of its divisors is an integer number (2456296).

Almost surely, 2^4912591 is an apocalyptic number.

4912591 is a deficient number, since it is larger than the sum of its proper divisors (1).

4912591 is an equidigital number, since it uses as much as digits as its factorization.

4912591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 4912591 is about 2216.4365544721. The cubic root of 4912591 is about 169.9952824527.

The spelling of 4912591 in words is "four million, nine hundred twelve thousand, five hundred ninety-one".