3437264821 has 2 divisors, whose sum is σ = 3437264822. Its totient is φ = 3437264820.

The previous prime is 3437264819. The next prime is 3437264827. The reversal of 3437264821 is 1284627343.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3191120100 + 246144721 = 56490^2 + 15689^2 .

It is an emirp because it is prime and its reverse (1284627343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3437264821 - 2¹ = 3437264819 is a prime.

Together with 3437264819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3437264827) 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, 1718632410 + 1718632411.

It is an arithmetic number, because the mean of its divisors is an integer number (1718632411).

Almost surely, 2^3437264821 is an apocalyptic number.

It is an amenable number.

3437264821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3437264821 is an equidigital number, since it uses as much as digits as its factorization.

3437264821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 40.

The square root of 3437264821 is about 58628.1913502370. The cubic root of 3437264821 is about 1509.1682656906.

The spelling of 3437264821 in words is "three billion, four hundred thirty-seven million, two hundred sixty-four thousand, eight hundred twenty-one".