3885945 has 48 divisors (see below), whose sum is σ = 7682688. Its totient is φ = 1666560.

The previous prime is 3885941. The next prime is 3885961. The reversal of 3885945 is 5495883.

3885945 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 3885945 - 2² = 3885941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3885897 and 3885906.

It is not an unprimeable number, because it can be changed into a prime (3885941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12340 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

Almost surely, 2^3885945 is an apocalyptic number.

3885945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3885945 is a deficient number, since it is larger than the sum of its proper divisors (3796743).

3885945 is a wasteful number, since it uses less digits than its factorization.

3885945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 343 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 3885945 is about 1971.2800409886. The cubic root of 3885945 is about 157.2167749452.

The spelling of 3885945 in words is "three million, eight hundred eighty-five thousand, nine hundred forty-five".