385658387 has 4 divisors (see below), whose sum is σ = 385726800. Its totient is φ = 385589976.

The previous prime is 385658381. The next prime is 385658389. The reversal of 385658387 is 783856583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385658387 - 2²⁰ = 384609811 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385658381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24908 + ... + 37305.

It is an arithmetic number, because the mean of its divisors is an integer number (96431700).

Almost surely, 2^385658387 is an apocalyptic number.

385658387 is a deficient number, since it is larger than the sum of its proper divisors (68413).

385658387 is an equidigital number, since it uses as much as digits as its factorization.

385658387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68412.

The product of its digits is 4838400, while the sum is 53.

The square root of 385658387 is about 19638.1869580672. The cubic root of 385658387 is about 727.8930848455.

The spelling of 385658387 in words is "three hundred eighty-five million, six hundred fifty-eight thousand, three hundred eighty-seven".