3531949 has 4 divisors (see below), whose sum is σ = 3685536. Its totient is φ = 3378364.

The previous prime is 3531911. The next prime is 3531989. The reversal of 3531949 is 9491353.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9491353 = 97 ⋅97849.

It is a cyclic number.

It is not a de Polignac number, because 3531949 - 2¹⁷ = 3400877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531989) 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, 76759 + ... + 76804.

It is an arithmetic number, because the mean of its divisors is an integer number (921384).

Almost surely, 2^3531949 is an apocalyptic number.

It is an amenable number.

3531949 is a deficient number, since it is larger than the sum of its proper divisors (153587).

3531949 is a wasteful number, since it uses less digits than its factorization.

3531949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153586.

The product of its digits is 14580, while the sum is 34.

The square root of 3531949 is about 1879.3480252471. The cubic root of 3531949 is about 152.2900308438.

The spelling of 3531949 in words is "three million, five hundred thirty-one thousand, nine hundred forty-nine".