784845349 has 2 divisors, whose sum is σ = 784845350. Its totient is φ = 784845348.

The previous prime is 784845319. The next prime is 784845367. The reversal of 784845349 is 943548487.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707932449 + 76912900 = 26607^2 + 8770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-784845349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 784845296 and 784845305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (784845319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392422674 + 392422675.

It is an arithmetic number, because the mean of its divisors is an integer number (392422675).

Almost surely, 2^784845349 is an apocalyptic number.

It is an amenable number.

784845349 is a deficient number, since it is larger than the sum of its proper divisors (1).

784845349 is an equidigital number, since it uses as much as digits as its factorization.

784845349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 52.

The square root of 784845349 is about 28015.0914508591. The cubic root of 784845349 is about 922.4185532880.

The spelling of 784845349 in words is "seven hundred eighty-four million, eight hundred forty-five thousand, three hundred forty-nine".