63496889 has 2 divisors, whose sum is σ = 63496890. Its totient is φ = 63496888.

The previous prime is 63496883. The next prime is 63496931. The reversal of 63496889 is 98869436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 13935289 = 7040^2 + 3733^2 .

It is a cyclic number.

It is not a de Polignac number, because 63496889 - 2⁸ = 63496633 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63496889.

It is not a weakly prime, because it can be changed into another prime (63496883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31748444 + 31748445.

It is an arithmetic number, because the mean of its divisors is an integer number (31748445).

Almost surely, 2^63496889 is an apocalyptic number.

It is an amenable number.

63496889 is a deficient number, since it is larger than the sum of its proper divisors (1).

63496889 is an equidigital number, since it uses as much as digits as its factorization.

63496889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The square root of 63496889 is about 7968.4935213627. The cubic root of 63496889 is about 398.9490934901.

The spelling of 63496889 in words is "sixty-three million, four hundred ninety-six thousand, eight hundred eighty-nine".