1395909 has 12 divisors (see below), whose sum is σ = 2063776. Its totient is φ = 908712.

The previous prime is 1395907. The next prime is 1395923. The reversal of 1395909 is 9095931.

It is not a de Polignac number, because 1395909 - 2¹ = 1395907 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 (1395907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1417 + ... + 2190.

2^1395909 is an apocalyptic number.

It is an amenable number.

1395909 is a deficient number, since it is larger than the sum of its proper divisors (667867).

1395909 is a wasteful number, since it uses less digits than its factorization.

1395909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3653 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 1395909 is about 1181.4859288201. The cubic root of 1395909 is about 111.7598222677.

It can be divided in two parts, 1395 and 909, that added together give a square (2304 = 48²).

The spelling of 1395909 in words is "one million, three hundred ninety-five thousand, nine hundred nine".