628717078 has 16 divisors (see below), whose sum is σ = 1029263040. Its totient is φ = 285654600.

The previous prime is 628717027. The next prime is 628717109. The reversal of 628717078 is 870717826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60553 + ... + 70171.

It is an arithmetic number, because the mean of its divisors is an integer number (64328940).

Almost surely, 2^628717078 is an apocalyptic number.

628717078 is a deficient number, since it is larger than the sum of its proper divisors (400545962).

628717078 is a wasteful number, since it uses less digits than its factorization.

628717078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12603.

The product of its (nonzero) digits is 263424, while the sum is 46.

The square root of 628717078 is about 25074.2313541213. The cubic root of 628717078 is about 856.6795879560.

The spelling of 628717078 in words is "six hundred twenty-eight million, seven hundred seventeen thousand, seventy-eight".