3691006 has 32 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 1545600.

The previous prime is 3691003. The next prime is 3691007. The reversal of 3691006 is 6001963.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3691003) 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 15 ways as a sum of consecutive naturals, for example, 26485 + ... + 26623.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

Almost surely, 2^3691006 is an apocalyptic number.

3691006 is a deficient number, since it is larger than the sum of its proper divisors (2840834).

3691006 is a wasteful number, since it uses less digits than its factorization.

3691006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 3691006 is about 1921.1991047260. The cubic root of 3691006 is about 154.5426127820.

Adding to 3691006 its reverse (6001963), we get a palindrome (9692969).

The spelling of 3691006 in words is "three million, six hundred ninety-one thousand, six".