789372421 has 2 divisors, whose sum is σ = 789372422. Its totient is φ = 789372420.

The previous prime is 789372403. The next prime is 789372497. The reversal of 789372421 is 124273987.

789372421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487968100 + 301404321 = 22090^2 + 17361^2 .

It is an emirp because it is prime and its reverse (124273987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 789372421 - 2¹⁹ = 788848133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789372401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394686210 + 394686211.

It is an arithmetic number, because the mean of its divisors is an integer number (394686211).

Almost surely, 2^789372421 is an apocalyptic number.

It is an amenable number.

789372421 is a deficient number, since it is larger than the sum of its proper divisors (1).

789372421 is an equidigital number, since it uses as much as digits as its factorization.

789372421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 789372421 is about 28095.7722976251. The cubic root of 789372421 is about 924.1886905147.

The spelling of 789372421 in words is "seven hundred eighty-nine million, three hundred seventy-two thousand, four hundred twenty-one".