316492805 has 8 divisors (see below), whose sum is σ = 392887800. Its totient is φ = 244463296.

The previous prime is 316492777. The next prime is 316492819. The reversal of 316492805 is 508294613.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35796289 + 280696516 = 5983^2 + 16754^2 .

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 316492805 - 2¹⁰ = 316491781 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1091210 + ... + 1091499.

It is an arithmetic number, because the mean of its divisors is an integer number (49110975).

Almost surely, 2^316492805 is an apocalyptic number.

It is an amenable number.

316492805 is a deficient number, since it is larger than the sum of its proper divisors (76394995).

316492805 is a wasteful number, since it uses less digits than its factorization.

316492805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182743.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 316492805 is about 17790.2446582390. The cubic root of 316492805 is about 681.4823523005.

The spelling of 316492805 in words is "three hundred sixteen million, four hundred ninety-two thousand, eight hundred five".