63487247 has 2 divisors, whose sum is σ = 63487248. Its totient is φ = 63487246.

The previous prime is 63487223. The next prime is 63487283. The reversal of 63487247 is 74278436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63487247 - 2⁸ = 63486991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63487217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31743623 + 31743624.

It is an arithmetic number, because the mean of its divisors is an integer number (31743624).

Almost surely, 2^63487247 is an apocalyptic number.

63487247 is a deficient number, since it is larger than the sum of its proper divisors (1).

63487247 is an equidigital number, since it uses as much as digits as its factorization.

63487247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 41.

The square root of 63487247 is about 7967.8884906856. Note that the first 3 decimals coincide. The cubic root of 63487247 is about 398.9288990000.

The spelling of 63487247 in words is "sixty-three million, four hundred eighty-seven thousand, two hundred forty-seven".