386142847 has 2 divisors, whose sum is σ = 386142848. Its totient is φ = 386142846.

The previous prime is 386142839. The next prime is 386142853. The reversal of 386142847 is 748241683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 386142847 - 2³ = 386142839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386142347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193071423 + 193071424.

It is an arithmetic number, because the mean of its divisors is an integer number (193071424).

Almost surely, 2^386142847 is an apocalyptic number.

386142847 is a deficient number, since it is larger than the sum of its proper divisors (1).

386142847 is an equidigital number, since it uses as much as digits as its factorization.

386142847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 386142847 is about 19650.5177285485. The cubic root of 386142847 is about 728.1977478494.

The spelling of 386142847 in words is "three hundred eighty-six million, one hundred forty-two thousand, eight hundred forty-seven".