380787047 has 2 divisors, whose sum is σ = 380787048. Its totient is φ = 380787046.

The previous prime is 380786993. The next prime is 380787067. The reversal of 380787047 is 740787083.

It is a strong prime.

It is an emirp because it is prime and its reverse (740787083) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380787047 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 380786989 and 380787007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380787067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190393523 + 190393524.

It is an arithmetic number, because the mean of its divisors is an integer number (190393524).

Almost surely, 2^380787047 is an apocalyptic number.

380787047 is a deficient number, since it is larger than the sum of its proper divisors (1).

380787047 is an equidigital number, since it uses as much as digits as its factorization.

380787047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 380787047 is about 19513.7655771509. The cubic root of 380787047 is about 724.8153613047.

The spelling of 380787047 in words is "three hundred eighty million, seven hundred eighty-seven thousand, forty-seven".