3438509 has 4 divisors (see below), whose sum is σ = 3494940. Its totient is φ = 3382080.

The previous prime is 3438469. The next prime is 3438511. The reversal of 3438509 is 9058343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162409 + 3276100 = 403^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 3438509 - 2¹² = 3434413 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3438529) 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, 28124 + ... + 28245.

It is an arithmetic number, because the mean of its divisors is an integer number (873735).

Almost surely, 2^3438509 is an apocalyptic number.

It is an amenable number.

3438509 is a deficient number, since it is larger than the sum of its proper divisors (56431).

3438509 is an equidigital number, since it uses as much as digits as its factorization.

3438509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56430.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3438509 is about 1854.3217088736. The cubic root of 3438509 is about 150.9350333803.

The spelling of 3438509 in words is "three million, four hundred thirty-eight thousand, five hundred nine".