63263668 has 18 divisors (see below), whose sum is σ = 119335874. Its totient is φ = 29172144.

The previous prime is 63263659. The next prime is 63263687. The reversal of 63263668 is 86636236.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43797924 + 19465744 = 6618^2 + 4412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63263668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56805 + ... + 57907.

Almost surely, 2^63263668 is an apocalyptic number.

It is an amenable number.

63263668 is a deficient number, since it is larger than the sum of its proper divisors (56072206).

63263668 is a wasteful number, since it uses less digits than its factorization.

63263668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223 (or 1118 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The square root of 63263668 is about 7953.8461136736. The cubic root of 63263668 is about 398.4600540241.

The spelling of 63263668 in words is "sixty-three million, two hundred sixty-three thousand, six hundred sixty-eight".