628936 has 32 divisors (see below), whose sum is σ = 1471680. Its totient is φ = 244800.

The previous prime is 628921. The next prime is 628937. The reversal of 628936 is 639826.

628936 = T₁₂₁ + T₁₂₂ + ... + T₁₇₆.

It is a happy number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (628937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 1126.

It is an arithmetic number, because the mean of its divisors is an integer number (45990).

2⁶²⁸⁹³⁶ 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 628936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735840).

628936 is an abundant number, since it is smaller than the sum of its proper divisors (842744).

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

628936 is a wasteful number, since it uses less digits than its factorization.

628936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1041 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 628936 is about 793.0548530839. The cubic root of 628936 is about 85.6779009594.

It can be divided in two parts, 62 and 8936, that added together give a palindrome (8998).

The spelling of 628936 in words is "six hundred twenty-eight thousand, nine hundred thirty-six".