307698313 has 8 divisors (see below), whose sum is σ = 331570568. Its totient is φ = 283855104.

The previous prime is 307698311. The next prime is 307698329. The reversal of 307698313 is 313896703.

It can be written as a sum of positive squares in 4 ways, for example, as 35844169 + 271854144 = 5987^2 + 16488^2 .

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

It is not a de Polignac number, because 307698313 - 2¹ = 307698311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307698311) 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, 18031 + ... + 30667.

It is an arithmetic number, because the mean of its divisors is an integer number (41446321).

Almost surely, 2^307698313 is an apocalyptic number.

It is an amenable number.

307698313 is a deficient number, since it is larger than the sum of its proper divisors (23872255).

307698313 is a wasteful number, since it uses less digits than its factorization.

307698313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14523.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 307698313 is about 17541.3315629116. The cubic root of 307698313 is about 675.1107732239.

The spelling of 307698313 in words is "three hundred seven million, six hundred ninety-eight thousand, three hundred thirteen".