3691445 has 8 divisors (see below), whose sum is σ = 4452000. Its totient is φ = 2938320.

The previous prime is 3691403. The next prime is 3691447. The reversal of 3691445 is 5441963.

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

It is not a de Polignac number, because 3691445 - 2¹⁸ = 3429301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3691447) 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, 695 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (556500).

Almost surely, 2^3691445 is an apocalyptic number.

It is an amenable number.

3691445 is a deficient number, since it is larger than the sum of its proper divisors (760555).

3691445 is a wasteful number, since it uses less digits than its factorization.

3691445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its digits is 12960, while the sum is 32.

The square root of 3691445 is about 1921.3133528917. The cubic root of 3691445 is about 154.5487395233.

The spelling of 3691445 in words is "three million, six hundred ninety-one thousand, four hundred forty-five".