63438364 has 18 divisors (see below), whose sum is σ = 122028032. Its totient is φ = 28835400.

The previous prime is 63438337. The next prime is 63438409. The reversal of 63438364 is 46383436.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 65052 + ... + 66019.

Almost surely, 2^63438364 is an apocalyptic number.

It is an amenable number.

63438364 is a deficient number, since it is larger than the sum of its proper divisors (58589668).

63438364 is a wasteful number, since it uses less digits than its factorization.

63438364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131097 (or 131084 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 63438364 is about 7964.8203997328. The cubic root of 63438364 is about 398.8264855263.

The spelling of 63438364 in words is "sixty-three million, four hundred thirty-eight thousand, three hundred sixty-four".