1395867 has 8 divisors (see below), whose sum is σ = 2030400. Its totient is φ = 845960.

The previous prime is 1395859. The next prime is 1395869. The reversal of 1395867 is 7685931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1395867 - 2³ = 1395859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1395869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21117 + ... + 21182.

It is an arithmetic number, because the mean of its divisors is an integer number (253800).

2^1395867 is an apocalyptic number.

1395867 is a deficient number, since it is larger than the sum of its proper divisors (634533).

1395867 is a wasteful number, since it uses less digits than its factorization.

1395867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42313.

The product of its digits is 45360, while the sum is 39.

The square root of 1395867 is about 1181.4681544587. The cubic root of 1395867 is about 111.7587013829.

Subtracting 1395867 from its reverse (7685931), we obtain a square (6290064 = 2508²).

It can be divided in two parts, 139 and 5867, that added together give a palindrome (6006).

The spelling of 1395867 in words is "one million, three hundred ninety-five thousand, eight hundred sixty-seven".