1369979 has 8 divisors (see below), whose sum is σ = 1562400. Its totient is φ = 1190016.

The previous prime is 1369969. The next prime is 1369981. The reversal of 1369979 is 9799631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1369979 - 2⁸ = 1369723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2879 + ... + 3320.

It is an arithmetic number, because the mean of its divisors is an integer number (195300).

2^1369979 is an apocalyptic number.

1369979 is a deficient number, since it is larger than the sum of its proper divisors (192421).

1369979 is a wasteful number, since it uses less digits than its factorization.

1369979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229.

The product of its digits is 91854, while the sum is 44.

The square root of 1369979 is about 1170.4610202822. The cubic root of 1369979 is about 111.0634866642.

The spelling of 1369979 in words is "one million, three hundred sixty-nine thousand, nine hundred seventy-nine".