3695891 has 4 divisors (see below), whose sum is σ = 3728712. Its totient is φ = 3663072.

The previous prime is 3695869. The next prime is 3695911. The reversal of 3695891 is 1985963.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3695891 is a prime.

It is a super-2 number, since 2×3695891² = 27319220567762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3695821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16241 + ... + 16466.

It is an arithmetic number, because the mean of its divisors is an integer number (932178).

Almost surely, 2^3695891 is an apocalyptic number.

3695891 is a deficient number, since it is larger than the sum of its proper divisors (32821).

3695891 is a wasteful number, since it uses less digits than its factorization.

3695891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32820.

The product of its digits is 58320, while the sum is 41.

The square root of 3695891 is about 1922.4700257741. The cubic root of 3695891 is about 154.6107611275.

The spelling of 3695891 in words is "three million, six hundred ninety-five thousand, eight hundred ninety-one".