621952 has 32 divisors (see below), whose sum is σ = 1279080. Its totient is φ = 301056.

The previous prime is 621941. The next prime is 621983. The reversal of 621952 is 259126.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

621952 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 3 ways as a sum of consecutive naturals, for example, 5448 + ... + 5560.

2⁶²¹⁹⁵² 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 621952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639540).

621952 is an abundant number, since it is smaller than the sum of its proper divisors (657128).

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

621952 is a wasteful number, since it uses less digits than its factorization.

621952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 158 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 621952 is about 788.6393345503. The cubic root of 621952 is about 85.3595839377.

The spelling of 621952 in words is "six hundred twenty-one thousand, nine hundred fifty-two".