305379713 has 6 divisors (see below), whose sum is σ = 307814934. Its totient is φ = 302947616.

The previous prime is 305379691. The next prime is 305379719. The reversal of 305379713 is 317973503.

It can be written as a sum of positive squares in 3 ways, for example, as 174689089 + 130690624 = 13217^2 + 11432^2 .

It is not a de Polignac number, because 305379713 - 2¹² = 305375617 is a prime.

It is a super-2 number, since 2×305379713² = 186513538223924738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305379719) 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 5 ways as a sum of consecutive naturals, for example, 203795 + ... + 205287.

It is an arithmetic number, because the mean of its divisors is an integer number (51302489).

Almost surely, 2^305379713 is an apocalyptic number.

It is an amenable number.

305379713 is a deficient number, since it is larger than the sum of its proper divisors (2435221).

305379713 is an frugal number, since it uses more digits than its factorization.

305379713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 59535, while the sum is 38.

The square root of 305379713 is about 17475.1169667044. The cubic root of 305379713 is about 673.4107746491.

The spelling of 305379713 in words is "three hundred five million, three hundred seventy-nine thousand, seven hundred thirteen".