63396805 has 4 divisors (see below), whose sum is σ = 76076172. Its totient is φ = 50717440.

The previous prime is 63396803. The next prime is 63396847. The reversal of 63396805 is 50869336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47983329 + 15413476 = 6927^2 + 3926^2 .

It is not a de Polignac number, because 63396805 - 2¹ = 63396803 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63396803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6339676 + ... + 6339685.

It is an arithmetic number, because the mean of its divisors is an integer number (19019043).

Almost surely, 2^63396805 is an apocalyptic number.

It is an amenable number.

63396805 is a deficient number, since it is larger than the sum of its proper divisors (12679367).

63396805 is a wasteful number, since it uses less digits than its factorization.

63396805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12679366.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 63396805 is about 7962.2110622615. The cubic root of 63396805 is about 398.7393749851.

The spelling of 63396805 in words is "sixty-three million, three hundred ninety-six thousand, eight hundred five".