306700636397 has 2 divisors, whose sum is σ = 306700636398. Its totient is φ = 306700636396.

The previous prime is 306700636369. The next prime is 306700636439. The reversal of 306700636397 is 793636007603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306612483076 + 88153321 = 553726^2 + 9389^2 .

It is a cyclic number.

It is not a de Polignac number, because 306700636397 - 2¹⁶ = 306700570861 is a prime.

It is a super-2 number, since 2×306700636397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306700633397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153350318198 + 153350318199.

It is an arithmetic number, because the mean of its divisors is an integer number (153350318199).

Almost surely, 2^306700636397 is an apocalyptic number.

It is an amenable number.

306700636397 is a deficient number, since it is larger than the sum of its proper divisors (1).

306700636397 is an equidigital number, since it uses as much as digits as its factorization.

306700636397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2571912, while the sum is 50.

The spelling of 306700636397 in words is "three hundred six billion, seven hundred million, six hundred thirty-six thousand, three hundred ninety-seven".