386948239 has 2 divisors, whose sum is σ = 386948240. Its totient is φ = 386948238.

The previous prime is 386948207. The next prime is 386948267. The reversal of 386948239 is 932849683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 386948239 - 2⁵ = 386948207 is a prime.

It is a super-2 number, since 2×386948239² = 299457879330402242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386948279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193474119 + 193474120.

It is an arithmetic number, because the mean of its divisors is an integer number (193474120).

Almost surely, 2^386948239 is an apocalyptic number.

386948239 is a deficient number, since it is larger than the sum of its proper divisors (1).

386948239 is an equidigital number, since it uses as much as digits as its factorization.

386948239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 52.

The square root of 386948239 is about 19670.9999491637. Note that the first 4 decimals coincide. The cubic root of 386948239 is about 728.7036723332.

The spelling of 386948239 in words is "three hundred eighty-six million, nine hundred forty-eight thousand, two hundred thirty-nine".