2008421797 has 2 divisors, whose sum is σ = 2008421798. Its totient is φ = 2008421796.

The previous prime is 2008421783. The next prime is 2008421843. The reversal of 2008421797 is 7971248002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1873071841 + 135349956 = 43279^2 + 11634^2 .

It is a cyclic number.

It is not a de Polignac number, because 2008421797 - 2¹⁹ = 2007897509 is a prime.

It is a super-2 number, since 2×2008421797² = 8067516229329418418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2008421747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004210898 + 1004210899.

It is an arithmetic number, because the mean of its divisors is an integer number (1004210899).

Almost surely, 2^2008421797 is an apocalyptic number.

It is an amenable number.

2008421797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2008421797 is an equidigital number, since it uses as much as digits as its factorization.

2008421797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2008421797 is about 44815.4191880429. The cubic root of 2008421797 is about 1261.6870399610.

Adding to 2008421797 its reverse (7971248002), we get a palindrome (9979669799).

The spelling of 2008421797 in words is "two billion, eight million, four hundred twenty-one thousand, seven hundred ninety-seven".