1395811 has 8 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 1353000.

The previous prime is 1395809. The next prime is 1395817. The reversal of 1395811 is 1185931.

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 1395811 - 2¹ = 1395809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1395811.

It is not an unprimeable number, because it can be changed into a prime (1395817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5436 + ... + 5686.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

2^1395811 is an apocalyptic number.

1395811 is a deficient number, since it is larger than the sum of its proper divisors (43613).

1395811 is an equidigital number, since it uses as much as digits as its factorization.

1395811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 1080, while the sum is 28.

The square root of 1395811 is about 1181.4444548941. Note that the first 4 decimals coincide. The cubic root of 1395811 is about 111.7572068349.

The spelling of 1395811 in words is "one million, three hundred ninety-five thousand, eight hundred eleven".