63696473 has 2 divisors, whose sum is σ = 63696474. Its totient is φ = 63696472.

The previous prime is 63696463. The next prime is 63696491. The reversal of 63696473 is 37469636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47720464 + 15976009 = 6908^2 + 3997^2 .

It is a cyclic number.

It is not a de Polignac number, because 63696473 - 2²² = 59502169 is a prime.

It is not a weakly prime, because it can be changed into another prime (63696403) 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, 31848236 + 31848237.

It is an arithmetic number, because the mean of its divisors is an integer number (31848237).

Almost surely, 2^63696473 is an apocalyptic number.

It is an amenable number.

63696473 is a deficient number, since it is larger than the sum of its proper divisors (1).

63696473 is an equidigital number, since it uses as much as digits as its factorization.

63696473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 44.

The square root of 63696473 is about 7981.0070166615. The cubic root of 63696473 is about 399.3666497814.

The spelling of 63696473 in words is "sixty-three million, six hundred ninety-six thousand, four hundred seventy-three".