316487639 has 8 divisors (see below), whose sum is σ = 341006400. Its totient is φ = 291993696.

The previous prime is 316487629. The next prime is 316487653. The reversal of 316487639 is 936784613.

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 316487639 - 2²⁴ = 299710423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316487593 and 316487602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316487629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26837 + ... + 36785.

It is an arithmetic number, because the mean of its divisors is an integer number (42625800).

Almost surely, 2^316487639 is an apocalyptic number.

316487639 is a deficient number, since it is larger than the sum of its proper divisors (24518761).

316487639 is a wasteful number, since it uses less digits than its factorization.

316487639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12409.

The product of its digits is 653184, while the sum is 47.

The square root of 316487639 is about 17790.0994657141. The cubic root of 316487639 is about 681.4786444153.

The spelling of 316487639 in words is "three hundred sixteen million, four hundred eighty-seven thousand, six hundred thirty-nine".