628571746 has 16 divisors (see below), whose sum is σ = 1034324640. Its totient is φ = 284116480.

The previous prime is 628571729. The next prime is 628571747. The reversal of 628571746 is 647175826.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 628571696 and 628571705.

It is not an unprimeable number, because it can be changed into a prime (628571747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75871 + ... + 83746.

It is an arithmetic number, because the mean of its divisors is an integer number (64645290).

Almost surely, 2^628571746 is an apocalyptic number.

628571746 is a deficient number, since it is larger than the sum of its proper divisors (405752894).

628571746 is a wasteful number, since it uses less digits than its factorization.

628571746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159809.

The product of its digits is 564480, while the sum is 46.

The square root of 628571746 is about 25071.3331516296. Note that the first 3 decimals coincide. The cubic root of 628571746 is about 856.6135738686.

The spelling of 628571746 in words is "six hundred twenty-eight million, five hundred seventy-one thousand, seven hundred forty-six".