3509987 has 8 divisors (see below), whose sum is σ = 3826704. Its totient is φ = 3199968.

The previous prime is 3509983. The next prime is 3509999. The reversal of 3509987 is 7899053.

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 3509987 - 2² = 3509983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3509981) 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, 548 + ... + 2705.

It is an arithmetic number, because the mean of its divisors is an integer number (478338).

Almost surely, 2^3509987 is an apocalyptic number.

3509987 is a deficient number, since it is larger than the sum of its proper divisors (316717).

3509987 is a wasteful number, since it uses less digits than its factorization.

3509987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 3509987 is about 1873.4959300730. The cubic root of 3509987 is about 151.9737229507.

The spelling of 3509987 in words is "three million, five hundred nine thousand, nine hundred eighty-seven".