3850665 has 72 divisors (see below), whose sum is σ = 8011008. Its totient is φ = 1572480.

The previous prime is 3850661. The next prime is 3850699. The reversal of 3850665 is 5660583.

3850665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3850665 - 2² = 3850661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3850661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 124200 + ... + 124230.

It is an arithmetic number, because the mean of its divisors is an integer number (111264).

Almost surely, 2^3850665 is an apocalyptic number.

3850665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3850665 is an abundant number, since it is smaller than the sum of its proper divisors (4160343).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3850665 is a wasteful number, since it uses less digits than its factorization.

3850665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 3850665 is about 1962.3111374092. The cubic root of 3850665 is about 156.7395440830.

The spelling of 3850665 in words is "three million, eight hundred fifty thousand, six hundred sixty-five".