386434739 has 2 divisors, whose sum is σ = 386434740. Its totient is φ = 386434738.

The previous prime is 386434733. The next prime is 386434759. The reversal of 386434739 is 937434683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386434739 - 2¹² = 386430643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 386434693 and 386434702.

It is not a weakly prime, because it can be changed into another prime (386434733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193217369 + 193217370.

It is an arithmetic number, because the mean of its divisors is an integer number (193217370).

Almost surely, 2^386434739 is an apocalyptic number.

386434739 is a deficient number, since it is larger than the sum of its proper divisors (1).

386434739 is an equidigital number, since it uses as much as digits as its factorization.

386434739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 47.

The square root of 386434739 is about 19657.9434071828. The cubic root of 386434739 is about 728.3811873573.

The spelling of 386434739 in words is "three hundred eighty-six million, four hundred thirty-four thousand, seven hundred thirty-nine".