3656091 has 8 divisors (see below), whose sum is σ = 4893264. Its totient is φ = 2428160.

The previous prime is 3656089. The next prime is 3656101. The reversal of 3656091 is 1906563.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3656091 - 2¹ = 3656089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3656491) 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, 1326 + ... + 3011.

It is an arithmetic number, because the mean of its divisors is an integer number (611658).

Almost surely, 2^3656091 is an apocalyptic number.

3656091 is a deficient number, since it is larger than the sum of its proper divisors (1237173).

3656091 is a wasteful number, since it uses less digits than its factorization.

3656091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 3656091 is about 1912.0907405246. The cubic root of 3656091 is about 154.0537705077.

The spelling of 3656091 in words is "three million, six hundred fifty-six thousand, ninety-one".