2820031 has 2 divisors, whose sum is σ = 2820032. Its totient is φ = 2820030.

The previous prime is 2820019. The next prime is 2820043. The reversal of 2820031 is 1300282.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2820019) and next prime (2820043).

It is a cyclic number.

It is not a de Polignac number, because 2820031 - 2⁷ = 2819903 is a prime.

It is a super-2 number, since 2×2820031² = 15905149681922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2819987 and 2820014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2820001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410015 + 1410016.

It is an arithmetic number, because the mean of its divisors is an integer number (1410016).

2^2820031 is an apocalyptic number.

2820031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820031 is an equidigital number, since it uses as much as digits as its factorization.

2820031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2820031 is about 1679.2947924650. The cubic root of 2820031 is about 141.2812821310.

The spelling of 2820031 in words is "two million, eight hundred twenty thousand, thirty-one".