385889277 has 4 divisors (see below), whose sum is σ = 514519040. Its totient is φ = 257259516.

The previous prime is 385889269. The next prime is 385889279. The reversal of 385889277 is 772988583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 385889277 - 2³ = 385889269 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 (385889279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64314877 + ... + 64314882.

It is an arithmetic number, because the mean of its divisors is an integer number (128629760).

Almost surely, 2^385889277 is an apocalyptic number.

It is an amenable number.

385889277 is a deficient number, since it is larger than the sum of its proper divisors (128629763).

385889277 is a wasteful number, since it uses less digits than its factorization.

385889277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128629762.

The product of its digits is 6773760, while the sum is 57.

The square root of 385889277 is about 19644.0646761305. The cubic root of 385889277 is about 728.0383167501.

The spelling of 385889277 in words is "three hundred eighty-five million, eight hundred eighty-nine thousand, two hundred seventy-seven".