789906401 has 2 divisors, whose sum is σ = 789906402. Its totient is φ = 789906400.

The previous prime is 789906373. The next prime is 789906413. The reversal of 789906401 is 104609987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789891025 + 15376 = 28105^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 789906401 - 2¹⁰ = 789905377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (789900401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394953200 + 394953201.

It is an arithmetic number, because the mean of its divisors is an integer number (394953201).

Almost surely, 2^789906401 is an apocalyptic number.

It is an amenable number.

789906401 is a deficient number, since it is larger than the sum of its proper divisors (1).

789906401 is an equidigital number, since it uses as much as digits as its factorization.

789906401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 789906401 is about 28105.2735443013. The cubic root of 789906401 is about 924.3970362115.

The spelling of 789906401 in words is "seven hundred eighty-nine million, nine hundred six thousand, four hundred one".