63424591 has 2 divisors, whose sum is σ = 63424592. Its totient is φ = 63424590.

The previous prime is 63424589. The next prime is 63424601. The reversal of 63424591 is 19542436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63424591 - 2¹ = 63424589 is a prime.

Together with 63424589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63424091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31712295 + 31712296.

It is an arithmetic number, because the mean of its divisors is an integer number (31712296).

Almost surely, 2^63424591 is an apocalyptic number.

63424591 is a deficient number, since it is larger than the sum of its proper divisors (1).

63424591 is an equidigital number, since it uses as much as digits as its factorization.

63424591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 63424591 is about 7963.9557381995. The cubic root of 63424591 is about 398.7976205808.

The spelling of 63424591 in words is "sixty-three million, four hundred twenty-four thousand, five hundred ninety-one".