1270397 has 4 divisors (see below), whose sum is σ = 1337280. Its totient is φ = 1203516.

The previous prime is 1270391. The next prime is 1270417. The reversal of 1270397 is 7930721.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1270397 - 2⁶ = 1270333 is a prime.

It is a super-2 number, since 2×1270397² = 3227817075218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33413 + ... + 33450.

It is an arithmetic number, because the mean of its divisors is an integer number (334320).

2^1270397 is an apocalyptic number.

It is an amenable number.

1270397 is a deficient number, since it is larger than the sum of its proper divisors (66883).

1270397 is an equidigital number, since it uses as much as digits as its factorization.

1270397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66882.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 1270397 is about 1127.1188934624. The cubic root of 1270397 is about 108.3044962036.

The spelling of 1270397 in words is "one million, two hundred seventy thousand, three hundred ninety-seven".