7074323821 has 2 divisors, whose sum is σ = 7074323822. Its totient is φ = 7074323820.

The previous prime is 7074323819. The next prime is 7074323869. The reversal of 7074323821 is 1283234707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6286904100 + 787419721 = 79290^2 + 28061^2 .

It is a cyclic number.

It is not a de Polignac number, because 7074323821 - 2¹ = 7074323819 is a prime.

Together with 7074323819, 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 (7074320821) 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, 3537161910 + 3537161911.

It is an arithmetic number, because the mean of its divisors is an integer number (3537161911).

Almost surely, 2^7074323821 is an apocalyptic number.

It is an amenable number.

7074323821 is a deficient number, since it is larger than the sum of its proper divisors (1).

7074323821 is an equidigital number, since it uses as much as digits as its factorization.

7074323821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 7074323821 is about 84108.9996433200. Note that the first 3 decimals coincide. The cubic root of 7074323821 is about 1919.6776640776.

The spelling of 7074323821 in words is "seven billion, seventy-four million, three hundred twenty-three thousand, eight hundred twenty-one".