3691982 has 16 divisors (see below), whose sum is σ = 6357120. Its totient is φ = 1575288.

The previous prime is 3691957. The next prime is 3692021. The reversal of 3691982 is 2891963.

It is a d-powerful number, because it can be written as 3¹³ + 6³ + 9² + 1 + 9² + 8⁷ + 2⁷ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869 + ... + 4727.

It is an arithmetic number, because the mean of its divisors is an integer number (397320).

Almost surely, 2^3691982 is an apocalyptic number.

3691982 is a deficient number, since it is larger than the sum of its proper divisors (2665138).

3691982 is a wasteful number, since it uses less digits than its factorization.

3691982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175.

The product of its digits is 23328, while the sum is 38.

The square root of 3691982 is about 1921.4530959667. The cubic root of 3691982 is about 154.5562333051.

The spelling of 3691982 in words is "three million, six hundred ninety-one thousand, nine hundred eighty-two".