380780247 has 4 divisors (see below), whose sum is σ = 507707000. Its totient is φ = 253853496.

The previous prime is 380780233. The next prime is 380780269. The reversal of 380780247 is 742087083.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 380780247 - 2⁷ = 380780119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380780047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63463372 + ... + 63463377.

It is an arithmetic number, because the mean of its divisors is an integer number (126926750).

Almost surely, 2^380780247 is an apocalyptic number.

380780247 is a deficient number, since it is larger than the sum of its proper divisors (126926753).

380780247 is a wasteful number, since it uses less digits than its factorization.

380780247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126926752.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 380780247 is about 19513.5913403966. The cubic root of 380780247 is about 724.8110467551.

The spelling of 380780247 in words is "three hundred eighty million, seven hundred eighty thousand, two hundred forty-seven".