306663417 has 6 divisors (see below), whose sum is σ = 442958282. Its totient is φ = 204442272.

The previous prime is 306663389. The next prime is 306663457. The reversal of 306663417 is 714366603.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 155151936 + 151511481 = 12456^2 + 12309^2 .

It is not a de Polignac number, because 306663417 - 2¹⁰ = 306662393 is a prime.

It is a super-2 number, since 2×306663417² = 188084902652231778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306663457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17036848 + ... + 17036865.

Almost surely, 2^306663417 is an apocalyptic number.

It is an amenable number.

306663417 is a deficient number, since it is larger than the sum of its proper divisors (136294865).

306663417 is a wasteful number, since it uses less digits than its factorization.

306663417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34073719 (or 34073716 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 306663417 is about 17511.8079306507. The cubic root of 306663417 is about 674.3530459684.

The spelling of 306663417 in words is "three hundred six million, six hundred sixty-three thousand, four hundred seventeen".