386868619 has 2 divisors, whose sum is σ = 386868620. Its totient is φ = 386868618.

The previous prime is 386868607. The next prime is 386868637. The reversal of 386868619 is 916868683.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386868619 - 2⁷ = 386868491 is a prime.

It is a super-2 number, since 2×386868619² = 299334656733934322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 386868619.

It is not a weakly prime, because it can be changed into another prime (386868019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193434309 + 193434310.

It is an arithmetic number, because the mean of its divisors is an integer number (193434310).

Almost surely, 2^386868619 is an apocalyptic number.

386868619 is a deficient number, since it is larger than the sum of its proper divisors (1).

386868619 is an equidigital number, since it uses as much as digits as its factorization.

386868619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 386868619 is about 19668.9760536740. The cubic root of 386868619 is about 728.6536885883.

The spelling of 386868619 in words is "three hundred eighty-six million, eight hundred sixty-eight thousand, six hundred nineteen".