621352 has 16 divisors (see below), whose sum is σ = 1178100. Its totient is φ = 307200.

The previous prime is 621347. The next prime is 621353. The reversal of 621352 is 253126.

It is a happy number.

621352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 586756 + 34596 = 766^2 + 186^2 .

It is not an unprimeable number, because it can be changed into a prime (621353) by changing a digit.

621352 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, 424 + ... + 1192.

2⁶²¹³⁵² is an apocalyptic number.

It is an amenable number.

621352 is a deficient number, since it is larger than the sum of its proper divisors (556748).

621352 is a wasteful number, since it uses less digits than its factorization.

621352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 872 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 621352 is about 788.2588407370. The cubic root of 621352 is about 85.3321261765.

Adding to 621352 its reverse (253126), we get a palindrome (874478).

The spelling of 621352 in words is "six hundred twenty-one thousand, three hundred fifty-two".