386342647 has 2 divisors, whose sum is σ = 386342648. Its totient is φ = 386342646.

The previous prime is 386342639. The next prime is 386342683. The reversal of 386342647 is 746243683.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386342647 - 2³ = 386342639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386342687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193171323 + 193171324.

It is an arithmetic number, because the mean of its divisors is an integer number (193171324).

Almost surely, 2^386342647 is an apocalyptic number.

386342647 is a deficient number, since it is larger than the sum of its proper divisors (1).

386342647 is an equidigital number, since it uses as much as digits as its factorization.

386342647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 43.

The square root of 386342647 is about 19655.6009066118. The cubic root of 386342647 is about 728.3233221235.

The spelling of 386342647 in words is "three hundred eighty-six million, three hundred forty-two thousand, six hundred forty-seven".