3554665 has 4 divisors (see below), whose sum is σ = 4265604. Its totient is φ = 2843728.

The previous prime is 3554651. The next prime is 3554669. The reversal of 3554665 is 5664553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5664553 = 17 ⋅333209.

It can be written as a sum of positive squares in 2 ways, for example, as 851929 + 2702736 = 923^2 + 1644^2 .

It is a cyclic number.

It is not a de Polignac number, because 3554665 - 2²¹ = 1457513 is a prime.

It is a Duffinian number.

3554665 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3554665.

It is not an unprimeable number, because it can be changed into a prime (3554669) by changing a digit.

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, 355462 + ... + 355471.

It is an arithmetic number, because the mean of its divisors is an integer number (1066401).

Almost surely, 2^3554665 is an apocalyptic number.

It is an amenable number.

3554665 is a deficient number, since it is larger than the sum of its proper divisors (710939).

3554665 is an equidigital number, since it uses as much as digits as its factorization.

3554665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710938.

The product of its digits is 54000, while the sum is 34.

The square root of 3554665 is about 1885.3819241735. The cubic root of 3554665 is about 152.6158217144.

The spelling of 3554665 in words is "three million, five hundred fifty-four thousand, six hundred sixty-five".