789232121 has 2 divisors, whose sum is σ = 789232122. Its totient is φ = 789232120.

The previous prime is 789232111. The next prime is 789232133. The reversal of 789232121 is 121232987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467424400 + 321807721 = 21620^2 + 17939^2 .

It is an emirp because it is prime and its reverse (121232987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 789232121 - 2⁶ = 789232057 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (789232111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394616060 + 394616061.

It is an arithmetic number, because the mean of its divisors is an integer number (394616061).

Almost surely, 2^789232121 is an apocalyptic number.

It is an amenable number.

789232121 is a deficient number, since it is larger than the sum of its proper divisors (1).

789232121 is an equidigital number, since it uses as much as digits as its factorization.

789232121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 789232121 is about 28093.2753697393. The cubic root of 789232121 is about 924.1339333631.

The spelling of 789232121 in words is "seven hundred eighty-nine million, two hundred thirty-two thousand, one hundred twenty-one".