3686516 has 6 divisors (see below), whose sum is σ = 6451410. Its totient is φ = 1843256.

The previous prime is 3686503. The next prime is 3686531. The reversal of 3686516 is 6156863.

3686516 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3648100 + 38416 = 1910^2 + 196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460811 + ... + 460818.

It is an arithmetic number, because the mean of its divisors is an integer number (1075235).

Almost surely, 2^3686516 is an apocalyptic number.

It is an amenable number.

3686516 is a deficient number, since it is larger than the sum of its proper divisors (2764894).

3686516 is a wasteful number, since it uses less digits than its factorization.

3686516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921633 (or 921631 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 3686516 is about 1920.0302080957. The cubic root of 3686516 is about 154.4799218435.

The spelling of 3686516 in words is "three million, six hundred eighty-six thousand, five hundred sixteen".