3539649 has 4 divisors (see below), whose sum is σ = 4719536. Its totient is φ = 2359764.

The previous prime is 3539639. The next prime is 3539651. The reversal of 3539649 is 9469353.

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.

It is not a de Polignac number, because 3539649 - 2⁷ = 3539521 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3539609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589939 + ... + 589944.

It is an arithmetic number, because the mean of its divisors is an integer number (1179884).

Almost surely, 2^3539649 is an apocalyptic number.

It is an amenable number.

3539649 is a deficient number, since it is larger than the sum of its proper divisors (1179887).

3539649 is a wasteful number, since it uses less digits than its factorization.

3539649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179886.

The product of its digits is 87480, while the sum is 39.

The square root of 3539649 is about 1881.3954927128. The cubic root of 3539649 is about 152.4006196543.

The spelling of 3539649 in words is "three million, five hundred thirty-nine thousand, six hundred forty-nine".