6321020 has 12 divisors (see below), whose sum is σ = 13274184. Its totient is φ = 2528400.

The previous prime is 6321017. The next prime is 6321023. The reversal of 6321020 is 201236.

It is an interprime number because it is at equal distance from previous prime (6321017) and next prime (6321023).

It is a junction number, because it is equal to n+sod(n) for n = 6320986 and 6321004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6321023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158006 + ... + 158045.

It is an arithmetic number, because the mean of its divisors is an integer number (1106182).

Almost surely, 2^6321020 is an apocalyptic number.

It is an amenable number.

6321020 is an abundant number, since it is smaller than the sum of its proper divisors (6953164).

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

6321020 is a wasteful number, since it uses less digits than its factorization.

6321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316060 (or 316058 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 6321020 is about 2514.1638769181. The cubic root of 6321020 is about 184.8966552094.

Adding to 6321020 its reverse (201236), we get a palindrome (6522256).

The spelling of 6321020 in words is "six million, three hundred twenty-one thousand, twenty".