65628630 has 40 divisors (see below), whose sum is σ = 176470272. Its totient is φ = 17500752.

The previous prime is 65628611. The next prime is 65628631. The reversal of 65628630 is 3682656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65628631) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39702 + ... + 41321.

Almost surely, 2^65628630 is an apocalyptic number.

65628630 is an abundant number, since it is smaller than the sum of its proper divisors (110841642).

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

65628630 is a wasteful number, since it uses less digits than its factorization.

65628630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81042 (or 81033 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 65628630 is about 8101.1499183758. The cubic root of 65628630 is about 403.3645985068.

The spelling of 65628630 in words is "sixty-five million, six hundred twenty-eight thousand, six hundred thirty".