628969143 has 16 divisors (see below), whose sum is σ = 916845696. Its totient is φ = 380367840.

The previous prime is 628969123. The next prime is 628969147. The reversal of 628969143 is 341969826.

It is not a de Polignac number, because 628969143 - 2⁶ = 628969079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628969092 and 628969101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628969147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4996 + ... + 35817.

It is an arithmetic number, because the mean of its divisors is an integer number (57302856).

Almost surely, 2^628969143 is an apocalyptic number.

628969143 is a deficient number, since it is larger than the sum of its proper divisors (287876553).

628969143 is a wasteful number, since it uses less digits than its factorization.

628969143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41294.

The product of its digits is 559872, while the sum is 48.

The square root of 628969143 is about 25079.2572258430. The cubic root of 628969143 is about 856.7940592056.

The spelling of 628969143 in words is "six hundred twenty-eight million, nine hundred sixty-nine thousand, one hundred forty-three".