628412 has 6 divisors (see below), whose sum is σ = 1099728. Its totient is φ = 314204.

The previous prime is 628399. The next prime is 628423. The reversal of 628412 is 214826.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78548 + ... + 78555.

It is an arithmetic number, because the mean of its divisors is an integer number (183288).

2⁶²⁸⁴¹² is an apocalyptic number.

It is an amenable number.

628412 is a deficient number, since it is larger than the sum of its proper divisors (471316).

628412 is a wasteful number, since it uses less digits than its factorization.

628412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157107 (or 157105 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 628412 is about 792.7244161750. The cubic root of 628412 is about 85.6541000776.

The spelling of 628412 in words is "six hundred twenty-eight thousand, four hundred twelve".