1395879 has 4 divisors (see below), whose sum is σ = 1861176. Its totient is φ = 930584.

The previous prime is 1395871. The next prime is 1395883. The reversal of 1395879 is 9785931.

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 1395879 - 2³ = 1395871 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1395879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395871) 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 3 ways as a sum of consecutive naturals, for example, 232644 + ... + 232649.

It is an arithmetic number, because the mean of its divisors is an integer number (465294).

2^1395879 is an apocalyptic number.

1395879 is a deficient number, since it is larger than the sum of its proper divisors (465297).

1395879 is an equidigital number, since it uses as much as digits as its factorization.

1395879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465296.

The product of its digits is 68040, while the sum is 42.

The square root of 1395879 is about 1181.4732328750. The cubic root of 1395879 is about 111.7590216380.

The spelling of 1395879 in words is "one million, three hundred ninety-five thousand, eight hundred seventy-nine".