63499487 has 2 divisors, whose sum is σ = 63499488. Its totient is φ = 63499486.

The previous prime is 63499483. The next prime is 63499549. The reversal of 63499487 is 78499436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63499487 - 2² = 63499483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63499483) 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, 31749743 + 31749744.

It is an arithmetic number, because the mean of its divisors is an integer number (31749744).

Almost surely, 2^63499487 is an apocalyptic number.

63499487 is a deficient number, since it is larger than the sum of its proper divisors (1).

63499487 is an equidigital number, since it uses as much as digits as its factorization.

63499487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 63499487 is about 7968.6565367068. The cubic root of 63499487 is about 398.9545344685.

The spelling of 63499487 in words is "sixty-three million, four hundred ninety-nine thousand, four hundred eighty-seven".