63231859 has 2 divisors, whose sum is σ = 63231860. Its totient is φ = 63231858.

The previous prime is 63231851. The next prime is 63231863. The reversal of 63231859 is 95813236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63231859 - 2³ = 63231851 is a prime.

It is not a weakly prime, because it can be changed into another prime (63231851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31615929 + 31615930.

It is an arithmetic number, because the mean of its divisors is an integer number (31615930).

Almost surely, 2^63231859 is an apocalyptic number.

63231859 is a deficient number, since it is larger than the sum of its proper divisors (1).

63231859 is an equidigital number, since it uses as much as digits as its factorization.

63231859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 63231859 is about 7951.8462636044. The cubic root of 63231859 is about 398.3932608650.

The spelling of 63231859 in words is "sixty-three million, two hundred thirty-one thousand, eight hundred fifty-nine".