1404212317 has 2 divisors, whose sum is σ = 1404212318. Its totient is φ = 1404212316.

The previous prime is 1404212311. The next prime is 1404212351. The reversal of 1404212317 is 7132124041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778912281 + 625300036 = 27909^2 + 25006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1404212317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1404212291 and 1404212300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404212311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702106158 + 702106159.

It is an arithmetic number, because the mean of its divisors is an integer number (702106159).

Almost surely, 2^1404212317 is an apocalyptic number.

It is an amenable number.

1404212317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404212317 is an equidigital number, since it uses as much as digits as its factorization.

1404212317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1404212317 is about 37472.8210440581. The cubic root of 1404212317 is about 1119.8097883292.

Adding to 1404212317 its reverse (7132124041), we get a palindrome (8536336358).

The spelling of 1404212317 in words is "one billion, four hundred four million, two hundred twelve thousand, three hundred seventeen".