3846645 has 48 divisors (see below), whose sum is σ = 7675200. Its totient is φ = 1762560.

The previous prime is 3846643. The next prime is 3846649. The reversal of 3846645 is 5466483.

3846645 is a `hidden beast` number, since 3 + 8 + 4 + 6 + 645 = 666.

It is not a de Polignac number, because 3846645 - 2¹ = 3846643 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

3846645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3846643) 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, 9201 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (159900).

Almost surely, 2^3846645 is an apocalyptic number.

It is an amenable number.

3846645 is a deficient number, since it is larger than the sum of its proper divisors (3828555).

3846645 is a wasteful number, since it uses less digits than its factorization.

3846645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 447 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 3846645 is about 1961.2865675367. The cubic root of 3846645 is about 156.6849810087.

It can be divided in two parts, 3 and 846645, that added together give a palindrome (846648).

The spelling of 3846645 in words is "three million, eight hundred forty-six thousand, six hundred forty-five".