628755602 has 4 divisors (see below), whose sum is σ = 943133406. Its totient is φ = 314377800.

The previous prime is 628755601. The next prime is 628755629. The reversal of 628755602 is 206557826.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 541911841 + 86843761 = 23279^2 + 9319^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 628755602.

It is not an unprimeable number, because it can be changed into a prime (628755601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157188899 + ... + 157188902.

Almost surely, 2^628755602 is an apocalyptic number.

628755602 is a deficient number, since it is larger than the sum of its proper divisors (314377804).

628755602 is a wasteful number, since it uses less digits than its factorization.

628755602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314377803.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 628755602 is about 25074.9995413759. Note that the first 3 decimals coincide. The cubic root of 628755602 is about 856.6970849890.

The spelling of 628755602 in words is "six hundred twenty-eight million, seven hundred fifty-five thousand, six hundred two".