632591 has 2 divisors, whose sum is σ = 632592. Its totient is φ = 632590.

The previous prime is 632561. The next prime is 632609. The reversal of 632591 is 195236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 632591 - 2¹⁴ = 616207 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 632591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632501) 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, 316295 + 316296.

It is an arithmetic number, because the mean of its divisors is an integer number (316296).

2⁶³²⁵⁹¹ is an apocalyptic number.

632591 is a deficient number, since it is larger than the sum of its proper divisors (1).

632591 is an equidigital number, since it uses as much as digits as its factorization.

632591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 632591 is about 795.3558951815. The cubic root of 632591 is about 85.8435500663.

It can be divided in two parts, 6325 and 91, that multiplied together give a palindrome (575575).

The spelling of 632591 in words is "six hundred thirty-two thousand, five hundred ninety-one".