1308979 has 8 divisors (see below), whose sum is σ = 1518848. Its totient is φ = 1104840.

The previous prime is 1308977. The next prime is 1309013. The reversal of 1308979 is 9798031.

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 1308979 - 2¹ = 1308977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927 + ... + 1864.

It is an arithmetic number, because the mean of its divisors is an integer number (189856).

2^1308979 is an apocalyptic number.

1308979 is a deficient number, since it is larger than the sum of its proper divisors (209869).

1308979 is an equidigital number, since it uses as much as digits as its factorization.

1308979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1308979 is about 1144.1062013642. The cubic root of 1308979 is about 109.3899842328.

The spelling of 1308979 in words is "one million, three hundred eight thousand, nine hundred seventy-nine".