1823342621 has 2 divisors, whose sum is σ = 1823342622. Its totient is φ = 1823342620.

The previous prime is 1823342567. The next prime is 1823342639. The reversal of 1823342621 is 1262433281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1474176025 + 349166596 = 38395^2 + 18686^2 .

It is a cyclic number.

It is not a de Polignac number, because 1823342621 - 2⁶ = 1823342557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1823342671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911671310 + 911671311.

It is an arithmetic number, because the mean of its divisors is an integer number (911671311).

Almost surely, 2^1823342621 is an apocalyptic number.

It is an amenable number.

1823342621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823342621 is an equidigital number, since it uses as much as digits as its factorization.

1823342621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 1823342621 is about 42700.6161665145. The cubic root of 1823342621 is about 1221.6761474580.

The spelling of 1823342621 in words is "one billion, eight hundred twenty-three million, three hundred forty-two thousand, six hundred twenty-one".