628849716 has 96 divisors (see below), whose sum is σ = 1709503488. Its totient is φ = 177999360.

The previous prime is 628849699. The next prime is 628849763. The reversal of 628849716 is 617948826.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 128140 + ... + 132956.

It is an arithmetic number, because the mean of its divisors is an integer number (17807328).

Almost surely, 2^628849716 is an apocalyptic number.

628849716 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628849716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854751744).

628849716 is an abundant number, since it is smaller than the sum of its proper divisors (1080653772).

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

628849716 is a wasteful number, since it uses less digits than its factorization.

628849716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901 (or 4899 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 628849716 is about 25076.8761212397. The cubic root of 628849716 is about 856.7398271751.

The spelling of 628849716 in words is "six hundred twenty-eight million, eight hundred forty-nine thousand, seven hundred sixteen".