1380847 has 4 divisors (see below), whose sum is σ = 1487080. Its totient is φ = 1274616.

The previous prime is 1380817. The next prime is 1380853. The reversal of 1380847 is 7480831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1380847 - 2¹¹ = 1378799 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 (1380817) 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, 53097 + ... + 53122.

It is an arithmetic number, because the mean of its divisors is an integer number (371770).

2^1380847 is an apocalyptic number.

1380847 is a deficient number, since it is larger than the sum of its proper divisors (106233).

1380847 is a wasteful number, since it uses less digits than its factorization.

1380847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106232.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1380847 is about 1175.0944642879. The cubic root of 1380847 is about 111.3564011707.

The spelling of 1380847 in words is "one million, three hundred eighty thousand, eight hundred forty-seven".