380780447 has 2 divisors, whose sum is σ = 380780448. Its totient is φ = 380780446.

The previous prime is 380780441. The next prime is 380780459. The reversal of 380780447 is 744087083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380780447 - 2⁶ = 380780383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380780441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190390223 + 190390224.

It is an arithmetic number, because the mean of its divisors is an integer number (190390224).

Almost surely, 2^380780447 is an apocalyptic number.

380780447 is a deficient number, since it is larger than the sum of its proper divisors (1).

380780447 is an equidigital number, since it uses as much as digits as its factorization.

380780447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 380780447 is about 19513.5964650292. The cubic root of 380780447 is about 724.8111736544.

The spelling of 380780447 in words is "three hundred eighty million, seven hundred eighty thousand, four hundred forty-seven".