385648077 has 16 divisors (see below), whose sum is σ = 559161792. Its totient is φ = 235434240.

The previous prime is 385648069. The next prime is 385648079. The reversal of 385648077 is 770846583.

It is not a de Polignac number, because 385648077 - 2³ = 385648069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385648079) 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 15 ways as a sum of consecutive naturals, for example, 100299 + ... + 104072.

It is an arithmetic number, because the mean of its divisors is an integer number (34947612).

Almost surely, 2^385648077 is an apocalyptic number.

385648077 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

385648077 is a deficient number, since it is larger than the sum of its proper divisors (173513715).

385648077 is a wasteful number, since it uses less digits than its factorization.

385648077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204428.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 385648077 is about 19637.9244575388. The cubic root of 385648077 is about 727.8865984101.

The spelling of 385648077 in words is "three hundred eighty-five million, six hundred forty-eight thousand, seventy-seven".