63535938 has 16 divisors (see below), whose sum is σ = 127634400. Its totient is φ = 21084896.

The previous prime is 63535931. The next prime is 63535951. The reversal of 63535938 is 83953536.

It is a self number, because there is not a number n which added to its sum of digits gives 63535938.

It is not an unprimeable number, because it can be changed into a prime (63535931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21963 + ... + 24686.

It is an arithmetic number, because the mean of its divisors is an integer number (7977150).

Almost surely, 2^63535938 is an apocalyptic number.

63535938 is an abundant number, since it is smaller than the sum of its proper divisors (64098462).

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

63535938 is a wasteful number, since it uses less digits than its factorization.

63535938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46881.

The product of its digits is 291600, while the sum is 42.

The square root of 63535938 is about 7970.9433569685. The cubic root of 63535938 is about 399.0308579724.

The spelling of 63535938 in words is "sixty-three million, five hundred thirty-five thousand, nine hundred thirty-eight".