1316690879 has 8 divisors (see below), whose sum is σ = 1506039840. Its totient is φ = 1127654496.

The previous prime is 1316690873. The next prime is 1316690887. The reversal of 1316690879 is 9780966131.

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 1316690879 - 2⁸ = 1316690623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316690873) 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, 69044 + ... + 86025.

It is an arithmetic number, because the mean of its divisors is an integer number (188254980).

Almost surely, 2^1316690879 is an apocalyptic number.

1316690879 is a deficient number, since it is larger than the sum of its proper divisors (189348961).

1316690879 is a wasteful number, since it uses less digits than its factorization.

1316690879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156289.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1316690879 is about 36286.2353930523. The cubic root of 1316690879 is about 1096.0438823848.

The spelling of 1316690879 in words is "one billion, three hundred sixteen million, six hundred ninety thousand, eight hundred seventy-nine".