63249684 has 12 divisors (see below), whose sum is σ = 147582624. Its totient is φ = 21083224.

The previous prime is 63249679. The next prime is 63249709. The reversal of 63249684 is 48694236.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×63249684³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2635392 + ... + 2635415.

It is an arithmetic number, because the mean of its divisors is an integer number (12298552).

Almost surely, 2^63249684 is an apocalyptic number.

It is an amenable number.

63249684 is an abundant number, since it is smaller than the sum of its proper divisors (84332940).

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

63249684 is a wasteful number, since it uses less digits than its factorization.

63249684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5270814 (or 5270812 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 63249684 is about 7952.9669935188. The cubic root of 63249684 is about 398.4306929064.

The spelling of 63249684 in words is "sixty-three million, two hundred forty-nine thousand, six hundred eighty-four".