1380867 has 4 divisors (see below), whose sum is σ = 1841160. Its totient is φ = 920576.

The previous prime is 1380853. The next prime is 1380881. The reversal of 1380867 is 7680831.

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

It is an interprime number because it is at equal distance from previous prime (1380853) and next prime (1380881).

It is a cyclic number.

It is not a de Polignac number, because 1380867 - 2⁸ = 1380611 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1380817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230142 + ... + 230147.

It is an arithmetic number, because the mean of its divisors is an integer number (460290).

2^1380867 is an apocalyptic number.

1380867 is a deficient number, since it is larger than the sum of its proper divisors (460293).

1380867 is an equidigital number, since it uses as much as digits as its factorization.

1380867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460292.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1380867 is about 1175.1029742112. The cubic root of 1380867 is about 111.3569387917.

The spelling of 1380867 in words is "one million, three hundred eighty thousand, eight hundred sixty-seven".