385777389 has 8 divisors (see below), whose sum is σ = 515629120. Its totient is φ = 256555296.

The previous prime is 385777373. The next prime is 385777411. The reversal of 385777389 is 983777583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385777389 - 2⁴ = 385777373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385777319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155977 + ... + 158430.

It is an arithmetic number, because the mean of its divisors is an integer number (64453640).

Almost surely, 2^385777389 is an apocalyptic number.

It is an amenable number.

385777389 is a deficient number, since it is larger than the sum of its proper divisors (129851731).

385777389 is a wasteful number, since it uses less digits than its factorization.

385777389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314819.

The product of its digits is 8890560, while the sum is 57.

The square root of 385777389 is about 19641.2165865559. The cubic root of 385777389 is about 727.9679454197.

The spelling of 385777389 in words is "three hundred eighty-five million, seven hundred seventy-seven thousand, three hundred eighty-nine".