3953509 has 8 divisors (see below), whose sum is σ = 4543488. Its totient is φ = 3369840.

The previous prime is 3953497. The next prime is 3953513. The reversal of 3953509 is 9053593.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3953509 - 2⁹ = 3952997 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 (3953519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (567936).

Almost surely, 2^3953509 is an apocalyptic number.

It is an amenable number.

3953509 is a deficient number, since it is larger than the sum of its proper divisors (589979).

3953509 is a wasteful number, since it uses less digits than its factorization.

3953509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 18225, while the sum is 34.

The square root of 3953509 is about 1988.3432802210. The cubic root of 3953509 is about 158.1227081797.

The spelling of 3953509 in words is "three million, nine hundred fifty-three thousand, five hundred nine".