3549955 has 4 divisors (see below), whose sum is σ = 4259952. Its totient is φ = 2839960.

The previous prime is 3549947. The next prime is 3549967. The reversal of 3549955 is 5599453.

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: 5599453 = 1667 ⋅3359.

It is not a de Polignac number, because 3549955 - 2³ = 3549947 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 354991 + ... + 355000.

It is an arithmetic number, because the mean of its divisors is an integer number (1064988).

Almost surely, 2^3549955 is an apocalyptic number.

3549955 is a deficient number, since it is larger than the sum of its proper divisors (709997).

3549955 is an equidigital number, since it uses as much as digits as its factorization.

3549955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709996.

The product of its digits is 121500, while the sum is 40.

The square root of 3549955 is about 1884.1324263438. The cubic root of 3549955 is about 152.5483856139.

The spelling of 3549955 in words is "three million, five hundred forty-nine thousand, nine hundred fifty-five".