63798533 has 2 divisors, whose sum is σ = 63798534. Its totient is φ = 63798532.

The previous prime is 63798503. The next prime is 63798551. The reversal of 63798533 is 33589736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 25877569 = 6158^2 + 5087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63798533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63798503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31899266 + 31899267.

It is an arithmetic number, because the mean of its divisors is an integer number (31899267).

Almost surely, 2^63798533 is an apocalyptic number.

It is an amenable number.

63798533 is a deficient number, since it is larger than the sum of its proper divisors (1).

63798533 is an equidigital number, since it uses as much as digits as its factorization.

63798533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 44.

The square root of 63798533 is about 7987.3983874601. The cubic root of 63798533 is about 399.5798358932.

The spelling of 63798533 in words is "sixty-three million, seven hundred ninety-eight thousand, five hundred thirty-three".