628628061 has 8 divisors (see below), whose sum is σ = 840456064. Its totient is φ = 417942720.

The previous prime is 628628047. The next prime is 628628069. The reversal of 628628061 is 160826826.

628628061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 628628061 - 2¹¹ = 628626013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628628069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284380 + ... + 286581.

It is an arithmetic number, because the mean of its divisors is an integer number (105057008).

Almost surely, 2^628628061 is an apocalyptic number.

It is an amenable number.

628628061 is a deficient number, since it is larger than the sum of its proper divisors (211828003).

628628061 is a wasteful number, since it uses less digits than its factorization.

628628061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571331.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 628628061 is about 25072.4562219181. The cubic root of 628628061 is about 856.6391550125.

The spelling of 628628061 in words is "six hundred twenty-eight million, six hundred twenty-eight thousand, sixty-one".