3162820 has 12 divisors (see below), whose sum is σ = 6641964. Its totient is φ = 1265120.

The previous prime is 3162811. The next prime is 3162829. The reversal of 3162820 is 282613.

It is an interprime number because it is at equal distance from previous prime (3162811) and next prime (3162829).

It can be written as a sum of positive squares in 2 ways, for example, as 2214144 + 948676 = 1488^2 + 974^2 .

It is a super-3 number, since 3×3162820³ = 94917148761533304000, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3162791 and 3162800.

It is not an unprimeable number, because it can be changed into a prime (3162829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79051 + ... + 79090.

It is an arithmetic number, because the mean of its divisors is an integer number (553497).

Almost surely, 2^3162820 is an apocalyptic number.

It is an amenable number.

3162820 is an abundant number, since it is smaller than the sum of its proper divisors (3479144).

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

3162820 is a wasteful number, since it uses less digits than its factorization.

3162820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158150 (or 158148 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3162820 is about 1778.4318935512. The cubic root of 3162820 is about 146.7883173442.

It can be divided in two parts, 316 and 2820, that added together give a square (3136 = 56²).

The spelling of 3162820 in words is "three million, one hundred sixty-two thousand, eight hundred twenty".