63813404 has 12 divisors (see below), whose sum is σ = 114049824. Its totient is φ = 31227744.

The previous prime is 63813403. The next prime is 63813433. The reversal of 63813404 is 40431836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63813401) 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, 169529 + ... + 169904.

It is an arithmetic number, because the mean of its divisors is an integer number (9504152).

Almost surely, 2^63813404 is an apocalyptic number.

It is an amenable number.

63813404 is a deficient number, since it is larger than the sum of its proper divisors (50236420).

63813404 is a wasteful number, since it uses less digits than its factorization.

63813404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339484 (or 339482 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 63813404 is about 7988.3292370808. The cubic root of 63813404 is about 399.6108799200.

The spelling of 63813404 in words is "sixty-three million, eight hundred thirteen thousand, four hundred four".