386550313 has 2 divisors, whose sum is σ = 386550314. Its totient is φ = 386550312.

The previous prime is 386550293. The next prime is 386550319. The reversal of 386550313 is 313055683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302864409 + 83685904 = 17403^2 + 9148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386550313 is a prime.

It is a super-2 number, since 2×386550313² = 298842288960795938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (386550319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193275156 + 193275157.

It is an arithmetic number, because the mean of its divisors is an integer number (193275157).

Almost surely, 2^386550313 is an apocalyptic number.

It is an amenable number.

386550313 is a deficient number, since it is larger than the sum of its proper divisors (1).

386550313 is an equidigital number, since it uses as much as digits as its factorization.

386550313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 386550313 is about 19660.8828133428. The cubic root of 386550313 is about 728.4537943014.

The spelling of 386550313 in words is "three hundred eighty-six million, five hundred fifty thousand, three hundred thirteen".