63689002 has 24 divisors (see below), whose sum is σ = 105177420. Its totient is φ = 28903680.

The previous prime is 63688981. The next prime is 63689009. The reversal of 63689002 is 20098636.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7123561 + 56565441 = 2669^2 + 7521^2 .

It is not an unprimeable number, because it can be changed into a prime (63689009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19074 + ... + 22162.

Almost surely, 2^63689002 is an apocalyptic number.

63689002 is a deficient number, since it is larger than the sum of its proper divisors (41488418).

63689002 is a wasteful number, since it uses less digits than its factorization.

63689002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178 (or 3165 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 63689002 is about 7980.5389542311. The cubic root of 63689002 is about 399.3510351811.

The spelling of 63689002 in words is "sixty-three million, six hundred eighty-nine thousand, two".