312686741 has 8 divisors (see below), whose sum is σ = 322307640. Its totient is φ = 303127488.

The previous prime is 312686719. The next prime is 312686753. The reversal of 312686741 is 147686213.

It can be written as a sum of positive squares in 4 ways, for example, as 1164241 + 311522500 = 1079^2 + 17650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312686741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312686695 and 312686704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312686701) 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, 5006 + ... + 25503.

It is an arithmetic number, because the mean of its divisors is an integer number (40288455).

Almost surely, 2^312686741 is an apocalyptic number.

It is an amenable number.

312686741 is a deficient number, since it is larger than the sum of its proper divisors (9620899).

312686741 is a wasteful number, since it uses less digits than its factorization.

312686741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30823.

The product of its digits is 48384, while the sum is 38.

The square root of 312686741 is about 17682.9505739285. The cubic root of 312686741 is about 678.7395487155.

The spelling of 312686741 in words is "three hundred twelve million, six hundred eighty-six thousand, seven hundred forty-one".