380780047 has 2 divisors, whose sum is σ = 380780048. Its totient is φ = 380780046.

The previous prime is 380780039. The next prime is 380780089. The reversal of 380780047 is 740087083.

It is a weak prime.

It is an emirp because it is prime and its reverse (740087083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380780047 - 2³ = 380780039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 380779988 and 380780015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380780447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190390023 + 190390024.

It is an arithmetic number, because the mean of its divisors is an integer number (190390024).

Almost surely, 2^380780047 is an apocalyptic number.

380780047 is a deficient number, since it is larger than the sum of its proper divisors (1).

380780047 is an equidigital number, since it uses as much as digits as its factorization.

380780047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 380780047 is about 19513.5862157626. The cubic root of 380780047 is about 724.8109198558.

The spelling of 380780047 in words is "three hundred eighty million, seven hundred eighty thousand, forty-seven".