9404403397 has 2 divisors, whose sum is σ = 9404403398. Its totient is φ = 9404403396.

The previous prime is 9404403377. The next prime is 9404403469. The reversal of 9404403397 is 7933044049.

9404403397 is digitally balanced in base 3, 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., 8926281441 + 478121956 = 94479^2 + 21866^2 .

It is a cyclic number.

It is not a de Polignac number, because 9404403397 - 2¹⁵ = 9404370629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9404403377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4702201698 + 4702201699.

It is an arithmetic number, because the mean of its divisors is an integer number (4702201699).

Almost surely, 2^9404403397 is an apocalyptic number.

It is an amenable number.

9404403397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9404403397 is an equidigital number, since it uses as much as digits as its factorization.

9404403397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 9404403397 is about 96976.3032755941. The cubic root of 9404403397 is about 2110.7837880139.

The spelling of 9404403397 in words is "nine billion, four hundred four million, four hundred three thousand, three hundred ninety-seven".