628867063 has 4 divisors (see below), whose sum is σ = 686036808. Its totient is φ = 571697320.

The previous prime is 628867051. The next prime is 628867067. The reversal of 628867063 is 360768826.

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

It is a cyclic number.

It is not a de Polignac number, because 628867063 - 2¹³ = 628858871 is a prime.

It is a super-4 number, since 4×628867063⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628867067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28584856 + ... + 28584877.

It is an arithmetic number, because the mean of its divisors is an integer number (171509202).

Almost surely, 2^628867063 is an apocalyptic number.

628867063 is a deficient number, since it is larger than the sum of its proper divisors (57169745).

628867063 is a wasteful number, since it uses less digits than its factorization.

628867063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57169744.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 628867063 is about 25077.2219952689. The cubic root of 628867063 is about 856.7477049074.

The spelling of 628867063 in words is "six hundred twenty-eight million, eight hundred sixty-seven thousand, sixty-three".