1395389 has 4 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 1393020.

The previous prime is 1395367. The next prime is 1395413. The reversal of 1395389 is 9835931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9835931 = 7 ⋅1405133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1395389 is a prime.

It is a super-2 number, since 2×1395389² = 3894220922642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395319) 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, 452 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

2^1395389 is an apocalyptic number.

It is an amenable number.

1395389 is a deficient number, since it is larger than the sum of its proper divisors (2371).

1395389 is a wasteful number, since it uses less digits than its factorization.

1395389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its digits is 29160, while the sum is 38.

The square root of 1395389 is about 1181.2658464546. The cubic root of 1395389 is about 111.7459430618.

The spelling of 1395389 in words is "one million, three hundred ninety-five thousand, three hundred eighty-nine".