63393408 has 256 divisors, whose sum is σ = 215913600. Its totient is φ = 18137088.

The previous prime is 63393403. The next prime is 63393413. The reversal of 63393408 is 80439336.

It is an interprime number because it is at equal distance from previous prime (63393403) and next prime (63393413).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (63393401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763735 + ... + 763817.

Almost surely, 2^63393408 is an apocalyptic number.

63393408 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63393408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107956800).

63393408 is an abundant number, since it is smaller than the sum of its proper divisors (152520192).

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

63393408 is a wasteful number, since it uses less digits than its factorization.

63393408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 63393408 is about 7961.9977392612. The cubic root of 63393408 is about 398.7322529550.

Adding to 63393408 its sum of digits (36), we get a square (63393444 = 7962²).

The spelling of 63393408 in words is "sixty-three million, three hundred ninety-three thousand, four hundred eight".