4106645 has 4 divisors (see below), whose sum is σ = 4927980. Its totient is φ = 3285312.

The previous prime is 4106621. The next prime is 4106651. The reversal of 4106645 is 5466014.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5466014 = 2 ⋅2733007.

It can be written as a sum of positive squares in 2 ways, for example, as 3104644 + 1002001 = 1762^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 4106645 - 2¹⁶ = 4041109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410660 + ... + 410669.

It is an arithmetic number, because the mean of its divisors is an integer number (1231995).

Almost surely, 2^4106645 is an apocalyptic number.

It is an amenable number.

4106645 is a deficient number, since it is larger than the sum of its proper divisors (821335).

4106645 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 12 representation: 4106645 = (1460645)₁₂.

4106645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821334.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4106645 is about 2026.4858746115. The cubic root of 4106645 is about 160.1384868699.

The spelling of 4106645 in words is "four million, one hundred six thousand, six hundred forty-five".