628625963 has 32 divisors (see below), whose sum is σ = 770826240. Its totient is φ = 500735520.

The previous prime is 628625939. The next prime is 628625993. The reversal of 628625963 is 369526826.

It is a cyclic number.

It is not a de Polignac number, because 628625963 - 2¹² = 628621867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628625993) 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 in 31 ways as a sum of consecutive naturals, for example, 2319518 + ... + 2319788.

It is an arithmetic number, because the mean of its divisors is an integer number (24088320).

Almost surely, 2^628625963 is an apocalyptic number.

628625963 is a deficient number, since it is larger than the sum of its proper divisors (142200277).

628625963 is a wasteful number, since it uses less digits than its factorization.

628625963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its digits is 933120, while the sum is 47.

The square root of 628625963 is about 25072.4143831423. The cubic root of 628625963 is about 856.6382020214.

The spelling of 628625963 in words is "six hundred twenty-eight million, six hundred twenty-five thousand, nine hundred sixty-three".