3693391 has 12 divisors (see below), whose sum is σ = 4203192. Its totient is φ = 3225744.

The previous prime is 3693373. The next prime is 3693397. The reversal of 3693391 is 1933963.

It is a happy number.

It is not a de Polignac number, because 3693391 - 2⁵ = 3693359 is a prime.

It is a super-2 number, since 2×3693391² = 27282274157762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3693397) 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 11 ways as a sum of consecutive naturals, for example, 4300 + ... + 5086.

It is an arithmetic number, because the mean of its divisors is an integer number (350266).

Almost surely, 2^3693391 is an apocalyptic number.

3693391 is a deficient number, since it is larger than the sum of its proper divisors (509801).

3693391 is a wasteful number, since it uses less digits than its factorization.

3693391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 819 counting only the distinct ones).

The product of its digits is 13122, while the sum is 34.

The square root of 3693391 is about 1921.8197105868. The cubic root of 3693391 is about 154.5758923062.

The spelling of 3693391 in words is "three million, six hundred ninety-three thousand, three hundred ninety-one".