386631013 has 2 divisors, whose sum is σ = 386631014. Its totient is φ = 386631012.

The previous prime is 386630971. The next prime is 386631031. The reversal of 386631013 is 310136683.

Together with next prime (386631031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380952324 + 5678689 = 19518^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 386631013 - 2²¹ = 384533861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386631043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193315506 + 193315507.

It is an arithmetic number, because the mean of its divisors is an integer number (193315507).

Almost surely, 2^386631013 is an apocalyptic number.

It is an amenable number.

386631013 is a deficient number, since it is larger than the sum of its proper divisors (1).

386631013 is an equidigital number, since it uses as much as digits as its factorization.

386631013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 386631013 is about 19662.9350047240. The cubic root of 386631013 is about 728.5044838052.

Adding to 386631013 its reverse (310136683), we get a palindrome (696767696).

The spelling of 386631013 in words is "three hundred eighty-six million, six hundred thirty-one thousand, thirteen".