628252173 has 16 divisors (see below), whose sum is σ = 931405440. Its totient is φ = 418537152.

The previous prime is 628252171. The next prime is 628252189. The reversal of 628252173 is 371252826.

628252173 is a `hidden beast` number, since 62 + 8 + 2 + 521 + 73 = 666.

628252173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628252173 - 2¹ = 628252171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628252171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34440 + ... + 49422.

It is an arithmetic number, because the mean of its divisors is an integer number (58212840).

Almost surely, 2^628252173 is an apocalyptic number.

It is an amenable number.

628252173 is a deficient number, since it is larger than the sum of its proper divisors (303153267).

628252173 is a wasteful number, since it uses less digits than its factorization.

628252173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16545 (or 16539 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 628252173 is about 25064.9590663939. The cubic root of 628252173 is about 856.4683785762.

The spelling of 628252173 in words is "six hundred twenty-eight million, two hundred fifty-two thousand, one hundred seventy-three".