1395917 has 4 divisors (see below), whose sum is σ = 1399740. Its totient is φ = 1392096.

The previous prime is 1395907. The next prime is 1395923. The reversal of 1395917 is 7195931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7195931 = 1447 ⋅4973.

It can be written as a sum of positive squares in 2 ways, for example, as 1297321 + 98596 = 1139^2 + 314^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395917 - 2⁸ = 1395661 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 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, 1298 + ... + 2115.

It is an arithmetic number, because the mean of its divisors is an integer number (349935).

2^1395917 is an apocalyptic number.

It is an amenable number.

1395917 is a deficient number, since it is larger than the sum of its proper divisors (3823).

1395917 is an equidigital number, since it uses as much as digits as its factorization.

1395917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822.

The product of its digits is 8505, while the sum is 35.

The square root of 1395917 is about 1181.4893143825. The cubic root of 1395917 is about 111.7600357671.

The spelling of 1395917 in words is "one million, three hundred ninety-five thousand, nine hundred seventeen".