1270979 has 4 divisors (see below), whose sum is σ = 1286376. Its totient is φ = 1255584.

The previous prime is 1270961. The next prime is 1270981. The reversal of 1270979 is 9790721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9790721 = 1861 ⋅5261.

It is a cyclic number.

It is not a de Polignac number, because 1270979 - 2¹² = 1266883 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1270909) 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, 7574 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (321594).

2^1270979 is an apocalyptic number.

1270979 is a deficient number, since it is larger than the sum of its proper divisors (15397).

1270979 is an equidigital number, since it uses as much as digits as its factorization.

1270979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 1270979 is about 1127.3770442935. The cubic root of 1270979 is about 108.3210326599.

The spelling of 1270979 in words is "one million, two hundred seventy thousand, nine hundred seventy-nine".