628085814 has 16 divisors (see below), whose sum is σ = 1256862720. Its totient is φ = 209246760.

The previous prime is 628085813. The next prime is 628085833. The reversal of 628085814 is 418580826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628085813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16582 + ... + 39129.

It is an arithmetic number, because the mean of its divisors is an integer number (78553920).

Almost surely, 2^628085814 is an apocalyptic number.

628085814 is an abundant number, since it is smaller than the sum of its proper divisors (628776906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628085814 is a wasteful number, since it uses less digits than its factorization.

628085814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57595.

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 628085814 is about 25061.6402894942. The cubic root of 628085814 is about 856.3927752823.

The spelling of 628085814 in words is "six hundred twenty-eight million, eighty-five thousand, eight hundred fourteen".