63487859 has 2 divisors, whose sum is σ = 63487860. Its totient is φ = 63487858.

The previous prime is 63487847. The next prime is 63487867. The reversal of 63487859 is 95878436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63487859 - 2⁸ = 63487603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63457859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31743929 + 31743930.

It is an arithmetic number, because the mean of its divisors is an integer number (31743930).

Almost surely, 2^63487859 is an apocalyptic number.

63487859 is a deficient number, since it is larger than the sum of its proper divisors (1).

63487859 is an equidigital number, since it uses as much as digits as its factorization.

63487859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 63487859 is about 7967.9268947450. The cubic root of 63487859 is about 398.9301808517.

It can be divided in two parts, 63487 and 859, that added together give a palindrome (64346).

The spelling of 63487859 in words is "sixty-three million, four hundred eighty-seven thousand, eight hundred fifty-nine".