628413 has 4 divisors (see below), whose sum is σ = 837888. Its totient is φ = 418940.

The previous prime is 628399. The next prime is 628423. The reversal of 628413 is 314826.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628413 - 2⁹ = 627901 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104733 + ... + 104738.

It is an arithmetic number, because the mean of its divisors is an integer number (209472).

2⁶²⁸⁴¹³ is an apocalyptic number.

It is an amenable number.

628413 is a deficient number, since it is larger than the sum of its proper divisors (209475).

628413 is a wasteful number, since it uses less digits than its factorization.

628413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209474.

The product of its digits is 1152, while the sum is 24.

The square root of 628413 is about 792.7250469110. The cubic root of 628413 is about 85.6541455118.

The spelling of 628413 in words is "six hundred twenty-eight thousand, four hundred thirteen".