3706647 has 8 divisors (see below), whose sum is σ = 5648256. Its totient is φ = 2118072.

The previous prime is 3706631. The next prime is 3706649. The reversal of 3706647 is 7466073.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3706647 - 2⁴ = 3706631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3706649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88233 + ... + 88274.

It is an arithmetic number, because the mean of its divisors is an integer number (706032).

Almost surely, 2^3706647 is an apocalyptic number.

3706647 is a deficient number, since it is larger than the sum of its proper divisors (1941609).

3706647 is a wasteful number, since it uses less digits than its factorization.

3706647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176517.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 3706647 is about 1925.2654362451. The cubic root of 3706647 is about 154.7606016488.

Adding to 3706647 its product of nonzero digits (21168), we get a triangular number (3727815 = T₂₇₃₀).

The spelling of 3706647 in words is "three million, seven hundred six thousand, six hundred forty-seven".