1385997 has 16 divisors (see below), whose sum is σ = 1944000. Its totient is φ = 877184.

The previous prime is 1385987. The next prime is 1386013. The reversal of 1385997 is 7995831.

It is a happy number.

It is not a de Polignac number, because 1385997 - 2⁷ = 1385869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7654 + ... + 7832.

It is an arithmetic number, because the mean of its divisors is an integer number (121500).

2^1385997 is an apocalyptic number.

It is an amenable number.

1385997 is a deficient number, since it is larger than the sum of its proper divisors (558003).

1385997 is a wasteful number, since it uses less digits than its factorization.

1385997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

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

The square root of 1385997 is about 1177.2837381022. The cubic root of 1385997 is about 111.4946675109.

The spelling of 1385997 in words is "one million, three hundred eighty-five thousand, nine hundred ninety-seven".