385166667 has 4 divisors (see below), whose sum is σ = 513555560. Its totient is φ = 256777776.

The previous prime is 385166659. The next prime is 385166699. The reversal of 385166667 is 766661583.

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

It is not a de Polignac number, because 385166667 - 2³ = 385166659 is a prime.

It is a super-2 number, since 2×385166667² = 296706722735777778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385166567) 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, 64194442 + ... + 64194447.

It is an arithmetic number, because the mean of its divisors is an integer number (128388890).

Almost surely, 2^385166667 is an apocalyptic number.

385166667 is a deficient number, since it is larger than the sum of its proper divisors (128388893).

385166667 is a wasteful number, since it uses less digits than its factorization.

385166667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128388892.

The product of its digits is 1088640, while the sum is 48.

The square root of 385166667 is about 19625.6634792305. The cubic root of 385166667 is about 727.5835952167.

The spelling of 385166667 in words is "three hundred eighty-five million, one hundred sixty-six thousand, six hundred sixty-seven".