628872046 has 8 divisors (see below), whose sum is σ = 1029063384. Its totient is φ = 285850920.

The previous prime is 628872019. The next prime is 628872071. The reversal of 628872046 is 640278826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×628872046² = 790960100480452232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 628871993 and 628872011.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14292525 + ... + 14292568.

It is an arithmetic number, because the mean of its divisors is an integer number (128632923).

Almost surely, 2^628872046 is an apocalyptic number.

628872046 is a deficient number, since it is larger than the sum of its proper divisors (400191338).

628872046 is a wasteful number, since it uses less digits than its factorization.

628872046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28585106.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 628872046 is about 25077.3213481823. The cubic root of 628872046 is about 856.7499677930.

The spelling of 628872046 in words is "six hundred twenty-eight million, eight hundred seventy-two thousand, forty-six".