383860885 has 4 divisors (see below), whose sum is σ = 460633068. Its totient is φ = 307088704.

The previous prime is 383860853. The next prime is 383860909. The reversal of 383860885 is 588068383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588068383 = 7 ⋅84009769.

It can be written as a sum of positive squares in 2 ways, for example, as 67519089 + 316341796 = 8217^2 + 17786^2 .

It is a cyclic number.

It is not a de Polignac number, because 383860885 - 2⁵ = 383860853 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38386084 + ... + 38386093.

It is an arithmetic number, because the mean of its divisors is an integer number (115158267).

Almost surely, 2^383860885 is an apocalyptic number.

It is an amenable number.

383860885 is a deficient number, since it is larger than the sum of its proper divisors (76772183).

383860885 is an equidigital number, since it uses as much as digits as its factorization.

383860885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76772182.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 383860885 is about 19592.3680294139. The cubic root of 383860885 is about 726.7604526662.

The spelling of 383860885 in words is "three hundred eighty-three million, eight hundred sixty thousand, eight hundred eighty-five".