628820363 has 4 divisors (see below), whose sum is σ = 628883640. Its totient is φ = 628757088.

The previous prime is 628820341. The next prime is 628820389. The reversal of 628820363 is 363028826.

It is a happy number.

628820363 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 628820363 - 2⁸ = 628820107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628820963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13118 + ... + 37811.

It is an arithmetic number, because the mean of its divisors is an integer number (157220910).

Almost surely, 2^628820363 is an apocalyptic number.

628820363 is a deficient number, since it is larger than the sum of its proper divisors (63277).

628820363 is a wasteful number, since it uses less digits than its factorization.

628820363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63276.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 628820363 is about 25076.2908541116. The cubic root of 628820363 is about 856.7264968702.

The spelling of 628820363 in words is "six hundred twenty-eight million, eight hundred twenty thousand, three hundred sixty-three".