1395863 has 12 divisors (see below), whose sum is σ = 1653912. Its totient is φ = 1174320.

The previous prime is 1395859. The next prime is 1395869. The reversal of 1395863 is 3685931.

1395863 is nontrivially palindromic in base 5.

It is not a de Polignac number, because 1395863 - 2² = 1395859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2756 + ... + 3222.

It is an arithmetic number, because the mean of its divisors is an integer number (137826).

2^1395863 is an apocalyptic number.

1395863 is a deficient number, since it is larger than the sum of its proper divisors (258049).

1395863 is an equidigital number, since it uses as much as digits as its factorization.

1395863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 535 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 1395863 is about 1181.4664616484. The cubic root of 1395863 is about 111.7585946308.

The spelling of 1395863 in words is "one million, three hundred ninety-five thousand, eight hundred sixty-three".