620732 has 18 divisors (see below), whose sum is σ = 1264032. Its totient is φ = 265944.

The previous prime is 620731. The next prime is 620743. The reversal of 620732 is 237026.

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 620732.

It is not an unprimeable number, because it can be changed into a prime (620731) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1388 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (70224).

2⁶²⁰⁷³² is an apocalyptic number.

It is an amenable number.

620732 is an abundant number, since it is smaller than the sum of its proper divisors (643300).

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

620732 is a wasteful number, since it uses less digits than its factorization.

620732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185 (or 3176 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 620732 is about 787.8654707499. The cubic root of 620732 is about 85.3037345805.

Adding to 620732 its reverse (237026), we get a palindrome (857758).

The spelling of 620732 in words is "six hundred twenty thousand, seven hundred thirty-two".