63670128 has 20 divisors (see below), whose sum is σ = 164481288. Its totient is φ = 21223360.

The previous prime is 63670127. The next prime is 63670157. The reversal of 63670128 is 82107636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63670127) 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, 663183 + ... + 663278.

Almost surely, 2^63670128 is an apocalyptic number.

It is an amenable number.

63670128 is an abundant number, since it is smaller than the sum of its proper divisors (100811160).

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

63670128 is a wasteful number, since it uses less digits than its factorization.

63670128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326472 (or 1326466 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 63670128 is about 7979.3563650209. The cubic root of 63670128 is about 399.3115825499.

The spelling of 63670128 in words is "sixty-three million, six hundred seventy thousand, one hundred twenty-eight".