883640621 has 2 divisors, whose sum is σ = 883640622. Its totient is φ = 883640620.

The previous prime is 883640591. The next prime is 883640633. The reversal of 883640621 is 126046388.

It is a happy number.

883640621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443102500 + 440538121 = 21050^2 + 20989^2 .

It is a cyclic number.

It is not a de Polignac number, because 883640621 - 2⁶ = 883640557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (883649621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 441820310 + 441820311.

It is an arithmetic number, because the mean of its divisors is an integer number (441820311).

Almost surely, 2^883640621 is an apocalyptic number.

It is an amenable number.

883640621 is a deficient number, since it is larger than the sum of its proper divisors (1).

883640621 is an equidigital number, since it uses as much as digits as its factorization.

883640621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 883640621 is about 29726.0932683728. The cubic root of 883640621 is about 959.6036489551.

The spelling of 883640621 in words is "eight hundred eighty-three million, six hundred forty thousand, six hundred twenty-one".