385660177 has 4 divisors (see below), whose sum is σ = 440754496. Its totient is φ = 330565860.

The previous prime is 385660123. The next prime is 385660193. The reversal of 385660177 is 771066583.

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 a cyclic number.

It is not a de Polignac number, because 385660177 - 2²⁷ = 251442449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385660477) 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, 27547149 + ... + 27547162.

It is an arithmetic number, because the mean of its divisors is an integer number (110188624).

Almost surely, 2^385660177 is an apocalyptic number.

It is an amenable number.

385660177 is a deficient number, since it is larger than the sum of its proper divisors (55094319).

385660177 is an equidigital number, since it uses as much as digits as its factorization.

385660177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55094318.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 385660177 is about 19638.2325324862. The cubic root of 385660177 is about 727.8942109946.

The spelling of 385660177 in words is "three hundred eighty-five million, six hundred sixty thousand, one hundred seventy-seven".