1235397 has 4 divisors (see below), whose sum is σ = 1647200. Its totient is φ = 823596.

The previous prime is 1235389. The next prime is 1235417. The reversal of 1235397 is 7935321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1235397 - 2³ = 1235389 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235327) 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, 205897 + ... + 205902.

It is an arithmetic number, because the mean of its divisors is an integer number (411800).

2^1235397 is an apocalyptic number.

It is an amenable number.

1235397 is a deficient number, since it is larger than the sum of its proper divisors (411803).

1235397 is an equidigital number, since it uses as much as digits as its factorization.

1235397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411802.

The product of its digits is 5670, while the sum is 30.

The square root of 1235397 is about 1111.4841429368. The cubic root of 1235397 is about 107.3006074974.

The spelling of 1235397 in words is "one million, two hundred thirty-five thousand, three hundred ninety-seven".