2804336621 has 2 divisors, whose sum is σ = 2804336622. Its totient is φ = 2804336620.

The previous prime is 2804336603. The next prime is 2804336641. The reversal of 2804336621 is 1266334082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1721005225 + 1083331396 = 41485^2 + 32914^2 .

It is a cyclic number.

It is not a de Polignac number, because 2804336621 - 2¹⁴ = 2804320237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2804336641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402168310 + 1402168311.

It is an arithmetic number, because the mean of its divisors is an integer number (1402168311).

Almost surely, 2^2804336621 is an apocalyptic number.

It is an amenable number.

2804336621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2804336621 is an equidigital number, since it uses as much as digits as its factorization.

2804336621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2804336621 is about 52955.9875840306. The cubic root of 2804336621 is about 1410.1870249711.

The spelling of 2804336621 in words is "two billion, eight hundred four million, three hundred thirty-six thousand, six hundred twenty-one".