386720123 has 2 divisors, whose sum is σ = 386720124. Its totient is φ = 386720122.

The previous prime is 386720111. The next prime is 386720143. The reversal of 386720123 is 321027683.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386720123 - 2⁴ = 386720107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386720123.

It is not a weakly prime, because it can be changed into another prime (386720143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193360061 + 193360062.

It is an arithmetic number, because the mean of its divisors is an integer number (193360062).

Almost surely, 2^386720123 is an apocalyptic number.

386720123 is a deficient number, since it is larger than the sum of its proper divisors (1).

386720123 is an equidigital number, since it uses as much as digits as its factorization.

386720123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 386720123 is about 19665.2008126030. The cubic root of 386720123 is about 728.5604476275.

The spelling of 386720123 in words is "three hundred eighty-six million, seven hundred twenty thousand, one hundred twenty-three".