628863058 has 4 divisors (see below), whose sum is σ = 943294590. Its totient is φ = 314431528.

The previous prime is 628863047. The next prime is 628863143. The reversal of 628863058 is 850368826.

It is a happy number.

628863058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 521802649 + 107060409 = 22843^2 + 10347^2 .

It is a super-3 number, since 3×628863058³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 628862999 and 628863017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157215763 + ... + 157215766.

Almost surely, 2^628863058 is an apocalyptic number.

628863058 is a deficient number, since it is larger than the sum of its proper divisors (314431532).

628863058 is a wasteful number, since it uses less digits than its factorization.

628863058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314431531.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 628863058 is about 25077.1421417992. The cubic root of 628863058 is about 856.7458861437.

The spelling of 628863058 in words is "six hundred twenty-eight million, eight hundred sixty-three thousand, fifty-eight".