2009487 has 8 divisors (see below), whose sum is σ = 2795904. Its totient is φ = 1281368.

The previous prime is 2009467. The next prime is 2009489. The reversal of 2009487 is 7849002.

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 2009487 - 2¹⁶ = 1943951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14493 + ... + 14630.

It is an arithmetic number, because the mean of its divisors is an integer number (349488).

2^2009487 is an apocalyptic number.

2009487 is a deficient number, since it is larger than the sum of its proper divisors (786417).

2009487 is a wasteful number, since it uses less digits than its factorization.

2009487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29149.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2009487 is about 1417.5637551800. The cubic root of 2009487 is about 126.1910053423.

The spelling of 2009487 in words is "two million, nine thousand, four hundred eighty-seven".