3506987 has 4 divisors (see below), whose sum is σ = 3825816. Its totient is φ = 3188160.

The previous prime is 3506983. The next prime is 3506989. The reversal of 3506987 is 7896053.

3506987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3506987 - 2² = 3506983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3506987.

It is not an unprimeable number, because it can be changed into a prime (3506983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159398 + ... + 159419.

It is an arithmetic number, because the mean of its divisors is an integer number (956454).

Almost surely, 2^3506987 is an apocalyptic number.

3506987 is a deficient number, since it is larger than the sum of its proper divisors (318829).

3506987 is a wasteful number, since it uses less digits than its factorization.

3506987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318828.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3506987 is about 1872.6951166701. The cubic root of 3506987 is about 151.9304130920.

It can be divided in two parts, 350 and 6987, that added together give a palindrome (7337).

The spelling of 3506987 in words is "three million, five hundred six thousand, nine hundred eighty-seven".