63630612 has 18 divisors (see below), whose sum is σ = 160844138. Its totient is φ = 21210192.

The previous prime is 63630587. The next prime is 63630613. The reversal of 63630612 is 21603636.

It can be written as a sum of positive squares in only one way, i.e., 53670276 + 9960336 = 7326^2 + 3156^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63630613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 883723 + ... + 883794.

Almost surely, 2^63630612 is an apocalyptic number.

It is an amenable number.

63630612 is an abundant number, since it is smaller than the sum of its proper divisors (97213526).

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

63630612 is a wasteful number, since it uses less digits than its factorization.

63630612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767527 (or 1767522 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 63630612 is about 7976.8798411409. The cubic root of 63630612 is about 399.2289563509.

The spelling of 63630612 in words is "sixty-three million, six hundred thirty thousand, six hundred twelve".