628692 has 12 divisors (see below), whose sum is σ = 1466976. Its totient is φ = 209560.

The previous prime is 628687. The next prime is 628699. The reversal of 628692 is 296826.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628692.

It is not an unprimeable number, because it can be changed into a prime (628699) by changing a digit.

628692 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 3 ways as a sum of consecutive naturals, for example, 26184 + ... + 26207.

It is an arithmetic number, because the mean of its divisors is an integer number (122248).

2⁶²⁸⁶⁹² is an apocalyptic number.

It is an amenable number.

628692 is an abundant number, since it is smaller than the sum of its proper divisors (838284).

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

628692 is a wasteful number, since it uses less digits than its factorization.

628692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52398 (or 52396 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 628692 is about 792.9010026479. The cubic root of 628692 is about 85.6668197514. Note that the first 3 decimals are identical.

The spelling of 628692 in words is "six hundred twenty-eight thousand, six hundred ninety-two".