628737136 has 40 divisors (see below), whose sum is σ = 1235211120. Its totient is φ = 310001664.

The previous prime is 628737119. The next prime is 628737157. The reversal of 628737136 is 631737826.

It is a junction number, because it is equal to n+sod(n) for n = 628737092 and 628737101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439270 + ... + 440698.

It is an arithmetic number, because the mean of its divisors is an integer number (30880278).

Almost surely, 2^628737136 is an apocalyptic number.

It is an amenable number.

628737136 is a deficient number, since it is larger than the sum of its proper divisors (606473984).

628737136 is a wasteful number, since it uses less digits than its factorization.

628737136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1795 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 628737136 is about 25074.6313233116. The cubic root of 628737136 is about 856.6886980931.

The spelling of 628737136 in words is "six hundred twenty-eight million, seven hundred thirty-seven thousand, one hundred thirty-six".