232422821 has 2 divisors, whose sum is σ = 232422822. Its totient is φ = 232422820.

The previous prime is 232422787. The next prime is 232422823. The reversal of 232422821 is 128224232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153016900 + 79405921 = 12370^2 + 8911^2 .

It is a cyclic number.

It is not a de Polignac number, because 232422821 - 2¹⁴ = 232406437 is a prime.

Together with 232422823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232422823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116211410 + 116211411.

It is an arithmetic number, because the mean of its divisors is an integer number (116211411).

Almost surely, 2^232422821 is an apocalyptic number.

It is an amenable number.

232422821 is a deficient number, since it is larger than the sum of its proper divisors (1).

232422821 is an equidigital number, since it uses as much as digits as its factorization.

232422821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 26.

The square root of 232422821 is about 15245.4196728066. The cubic root of 232422821 is about 614.8364259711.

The spelling of 232422821 in words is "two hundred thirty-two million, four hundred twenty-two thousand, eight hundred twenty-one".