628545946 has 32 divisors (see below), whose sum is σ = 1112901120. Its totient is φ = 260658816.

The previous prime is 628545943. The next prime is 628545959. The reversal of 628545946 is 649545826.

It is a self number, because there is not a number n which added to its sum of digits gives 628545946.

It is not an unprimeable number, because it can be changed into a prime (628545941) 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 15 ways as a sum of consecutive naturals, for example, 53196 + ... + 63928.

It is an arithmetic number, because the mean of its divisors is an integer number (34778160).

Almost surely, 2^628545946 is an apocalyptic number.

628545946 is a deficient number, since it is larger than the sum of its proper divisors (484355174).

628545946 is a wasteful number, since it uses less digits than its factorization.

628545946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10878.

The product of its digits is 2073600, while the sum is 49.

The square root of 628545946 is about 25070.8186144769. The cubic root of 628545946 is about 856.6018536830.

The spelling of 628545946 in words is "six hundred twenty-eight million, five hundred forty-five thousand, nine hundred forty-six".