920628 has 36 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 302736.

The previous prime is 920609. The next prime is 920641. The reversal of 920628 is 826029.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 920628.

It is an unprimeable number.

920628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3733 + ... + 3971.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2⁹²⁰⁶²⁸ is an apocalyptic number.

It is an amenable number.

920628 is an abundant number, since it is smaller than the sum of its proper divisors (1438092).

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

920628 is a wasteful number, since it uses less digits than its factorization.

920628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 920628 is about 959.4936164457. The cubic root of 920628 is about 97.2810075081.

The spelling of 920628 in words is "nine hundred twenty thousand, six hundred twenty-eight".