1397895 has 16 divisors (see below), whose sum is σ = 2292192. Its totient is φ = 727040.

The previous prime is 1397881. The next prime is 1397909. The reversal of 1397895 is 5987931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1397881) and next prime (1397909).

It is not a de Polignac number, because 1397895 - 2¹⁵ = 1365127 is a prime.

It is a super-2 number, since 2×1397895² = 3908220862050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (143262).

2^1397895 is an apocalyptic number.

1397895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1397895 is a deficient number, since it is larger than the sum of its proper divisors (894297).

1397895 is a wasteful number, since it uses less digits than its factorization.

1397895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its digits is 68040, while the sum is 42.

The square root of 1397895 is about 1182.3260971492. The cubic root of 1397895 is about 111.8127984597.

The spelling of 1397895 in words is "one million, three hundred ninety-seven thousand, eight hundred ninety-five".