2420813 has 2 divisors, whose sum is σ = 2420814. Its totient is φ = 2420812.

The previous prime is 2420807. The next prime is 2420827. The reversal of 2420813 is 3180242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2316484 + 104329 = 1522^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420813 - 2⁸ = 2420557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210406 + 1210407.

It is an arithmetic number, because the mean of its divisors is an integer number (1210407).

2^2420813 is an apocalyptic number.

It is an amenable number.

2420813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420813 is an equidigital number, since it uses as much as digits as its factorization.

2420813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2420813 is about 1555.8962047643. The cubic root of 2420813 is about 134.2725018258.

The spelling of 2420813 in words is "two million, four hundred twenty thousand, eight hundred thirteen".