628334712 has 128 divisors (see below), whose sum is σ = 1847136000. Its totient is φ = 197354880.

The previous prime is 628334701. The next prime is 628334713. The reversal of 628334712 is 217433826.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628334713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1161162 + ... + 1161702.

It is an arithmetic number, because the mean of its divisors is an integer number (14430750).

Almost surely, 2^628334712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628334712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923568000).

628334712 is an abundant number, since it is smaller than the sum of its proper divisors (1218801288).

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

628334712 is a wasteful number, since it uses less digits than its factorization.

628334712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 848 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 628334712 is about 25066.6055141098. The cubic root of 628334712 is about 856.5058841889.

The spelling of 628334712 in words is "six hundred twenty-eight million, three hundred thirty-four thousand, seven hundred twelve".