63436416 has 96 divisors (see below), whose sum is σ = 176353920. Its totient is φ = 20183040.

The previous prime is 63436411. The next prime is 63436433. The reversal of 63436416 is 61463436.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63436411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868956 + ... + 869028.

It is an arithmetic number, because the mean of its divisors is an integer number (1837020).

Almost surely, 2^63436416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63436416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88176960).

63436416 is an abundant number, since it is smaller than the sum of its proper divisors (112917504).

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

63436416 is an equidigital number, since it uses as much as digits as its factorization.

63436416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 109 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 63436416 is about 7964.6981110397. The cubic root of 63436416 is about 398.8224032334.

The spelling of 63436416 in words is "sixty-three million, four hundred thirty-six thousand, four hundred sixteen".