3544945 has 4 divisors (see below), whose sum is σ = 4253940. Its totient is φ = 2835952.

The previous prime is 3544939. The next prime is 3544969. The reversal of 3544945 is 5494453.

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: 5494453 = 61 ⋅90073.

It can be written as a sum of positive squares in 2 ways, for example, as 2819041 + 725904 = 1679^2 + 852^2 .

It is a cyclic number.

It is not a de Polignac number, because 3544945 - 2⁹ = 3544433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3544945.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354490 + ... + 354499.

It is an arithmetic number, because the mean of its divisors is an integer number (1063485).

Almost surely, 2^3544945 is an apocalyptic number.

It is an amenable number.

3544945 is a deficient number, since it is larger than the sum of its proper divisors (708995).

3544945 is an equidigital number, since it uses as much as digits as its factorization.

3544945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708994.

The product of its digits is 43200, while the sum is 34.

The square root of 3544945 is about 1882.8024325457. The cubic root of 3544945 is about 152.4765887201.

It can be divided in two parts, 3544 and 945, that added together give a square (4489 = 67²).

The spelling of 3544945 in words is "three million, five hundred forty-four thousand, nine hundred forty-five".