63533684 has 12 divisors (see below), whose sum is σ = 111251364. Its totient is φ = 31747584.

The previous prime is 63533683. The next prime is 63533689. The reversal of 63533684 is 48633536.

It can be written as a sum of positive squares in 2 ways, for example, as 24720784 + 38812900 = 4972^2 + 6230^2 .

It is a super-2 number, since 2×63533684² = 8073058005223712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63533681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4694 + ... + 12210.

It is an arithmetic number, because the mean of its divisors is an integer number (9270947).

Almost surely, 2^63533684 is an apocalyptic number.

It is an amenable number.

63533684 is a deficient number, since it is larger than the sum of its proper divisors (47717680).

63533684 is a wasteful number, since it uses less digits than its factorization.

63533684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9634 (or 9632 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 63533684 is about 7970.8019671800. The cubic root of 63533684 is about 399.0261392456.

The spelling of 63533684 in words is "sixty-three million, five hundred thirty-three thousand, six hundred eighty-four".