1367979 has 4 divisors (see below), whose sum is σ = 1823976. Its totient is φ = 911984.

The previous prime is 1367963. The next prime is 1367987. The reversal of 1367979 is 9797631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9797631 = 3 ⋅3265877.

It is a cyclic number.

It is not a de Polignac number, because 1367979 - 2⁴ = 1367963 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1367979.

It is not an unprimeable number, because it can be changed into a prime (1367929) 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, 227994 + ... + 227999.

It is an arithmetic number, because the mean of its divisors is an integer number (455994).

2^1367979 is an apocalyptic number.

1367979 is a deficient number, since it is larger than the sum of its proper divisors (455997).

1367979 is an equidigital number, since it uses as much as digits as its factorization.

1367979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455996.

The product of its digits is 71442, while the sum is 42.

The square root of 1367979 is about 1169.6063440320. The cubic root of 1367979 is about 111.0094140218.

It can be divided in two parts, 1367 and 979, that added together give a triangular number (2346 = T₆₈).

The spelling of 1367979 in words is "one million, three hundred sixty-seven thousand, nine hundred seventy-nine".