63438347 has 16 divisors (see below), whose sum is σ = 76795392. Its totient is φ = 51226560.

The previous prime is 63438337. The next prime is 63438409. The reversal of 63438347 is 74383436.

It is a happy number.

It is not a de Polignac number, because 63438347 - 2¹⁶ = 63372811 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63438347.

It is not an unprimeable number, because it can be changed into a prime (63438317) 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 in 15 ways as a sum of consecutive naturals, for example, 7847 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (4799712).

Almost surely, 2^63438347 is an apocalyptic number.

63438347 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

63438347 is a deficient number, since it is larger than the sum of its proper divisors (13357045).

63438347 is a wasteful number, since it uses less digits than its factorization.

63438347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978.

The product of its digits is 145152, while the sum is 38.

The square root of 63438347 is about 7964.8193325398. The cubic root of 63438347 is about 398.8264499009.

The spelling of 63438347 in words is "sixty-three million, four hundred thirty-eight thousand, three hundred forty-seven".