4046509 has 4 divisors (see below), whose sum is σ = 4063680. Its totient is φ = 4029340.

The previous prime is 4046507. The next prime is 4046513. The reversal of 4046509 is 9056404.

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 a cyclic number.

It is not a de Polignac number, because 4046509 - 2¹ = 4046507 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 (4046507) 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, 8227 + ... + 8704.

It is an arithmetic number, because the mean of its divisors is an integer number (1015920).

Almost surely, 2^4046509 is an apocalyptic number.

It is an amenable number.

4046509 is a deficient number, since it is larger than the sum of its proper divisors (17171).

4046509 is a wasteful number, since it uses less digits than its factorization.

4046509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 4046509 is about 2011.5936468382. The cubic root of 4046509 is about 159.3529729394.

The spelling of 4046509 in words is "four million, forty-six thousand, five hundred nine".