386923261 has 2 divisors, whose sum is σ = 386923262. Its totient is φ = 386923260.

The previous prime is 386923253. The next prime is 386923297. The reversal of 386923261 is 162329683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302099161 + 84824100 = 17381^2 + 9210^2 .

It is an emirp because it is prime and its reverse (162329683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 386923261 - 2³ = 386923253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386924261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193461630 + 193461631.

It is an arithmetic number, because the mean of its divisors is an integer number (193461631).

Almost surely, 2^386923261 is an apocalyptic number.

It is an amenable number.

386923261 is a deficient number, since it is larger than the sum of its proper divisors (1).

386923261 is an equidigital number, since it uses as much as digits as its factorization.

386923261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 386923261 is about 19670.3650449096. The cubic root of 386923261 is about 728.6879924135.

The spelling of 386923261 in words is "three hundred eighty-six million, nine hundred twenty-three thousand, two hundred sixty-one".