581407 has 2 divisors, whose sum is σ = 581408. Its totient is φ = 581406.

The previous prime is 581393. The next prime is 581411. The reversal of 581407 is 704185.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 581407 - 2¹⁹ = 57119 is a prime.

It is the 763-rd Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581447) by changing a digit.

It is a nontrivial repunit in base 762.

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 as a sum of consecutive naturals, namely, 290703 + 290704.

It is an arithmetic number, because the mean of its divisors is an integer number (290704).

2⁵⁸¹⁴⁰⁷ is an apocalyptic number.

581407 is a deficient number, since it is larger than the sum of its proper divisors (1).

581407 is an equidigital number, since it uses as much as digits as its factorization.

581407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 581407 is about 762.5004918031. The cubic root of 581407 is about 83.4628900319.

The spelling of 581407 in words is "five hundred eighty-one thousand, four hundred seven".