3509245 has 8 divisors (see below), whose sum is σ = 4253400. Its totient is φ = 2779200.

The previous prime is 3509221. The next prime is 3509251. The reversal of 3509245 is 5429053.

It can be written as a sum of positive squares in 4 ways, for example, as 1898884 + 1610361 = 1378^2 + 1269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3509245 - 2⁹ = 3508733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2970 + ... + 3979.

It is an arithmetic number, because the mean of its divisors is an integer number (531675).

Almost surely, 2^3509245 is an apocalyptic number.

It is an amenable number.

3509245 is a deficient number, since it is larger than the sum of its proper divisors (744155).

3509245 is a wasteful number, since it uses less digits than its factorization.

3509245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 3509245 is about 1873.2978940895. The cubic root of 3509245 is about 151.9630132767.

The spelling of 3509245 in words is "three million, five hundred nine thousand, two hundred forty-five".