63436436 has 12 divisors (see below), whose sum is σ = 126872928. Its totient is φ = 27187032.

The previous prime is 63436433. The next prime is 63436501. The reversal of 63436436 is 63463436.

It is a happy number.

63436436 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 63436396 and 63436405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63436433) 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, 1132766 + ... + 1132821.

It is an arithmetic number, because the mean of its divisors is an integer number (10572744).

Almost surely, 2^63436436 is an apocalyptic number.

It is an amenable number.

63436436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63436436 is a wasteful number, since it uses less digits than its factorization.

63436436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265598 (or 2265596 counting only the distinct ones).

The product of its digits is 93312, while the sum is 35.

The square root of 63436436 is about 7964.6993665800. The cubic root of 63436436 is about 398.8224451465.

Subtracting 63436436 from its reverse (63463436), we obtain a cube (27000 = 30³).

The spelling of 63436436 in words is "sixty-three million, four hundred thirty-six thousand, four hundred thirty-six".