1316684807 has 4 divisors (see below), whose sum is σ = 1317498696. Its totient is φ = 1315870920.

The previous prime is 1316684797. The next prime is 1316684821. The reversal of 1316684807 is 7084866131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1316684807 - 2¹² = 1316680711 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 (1316684507) 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, 404513 + ... + 407754.

It is an arithmetic number, because the mean of its divisors is an integer number (329374674).

Almost surely, 2^1316684807 is an apocalyptic number.

1316684807 is a deficient number, since it is larger than the sum of its proper divisors (813889).

1316684807 is an equidigital number, since it uses as much as digits as its factorization.

1316684807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813888.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1316684807 is about 36286.1517248661. The cubic root of 1316684807 is about 1096.0421975579.

The spelling of 1316684807 in words is "one billion, three hundred sixteen million, six hundred eighty-four thousand, eight hundred seven".