3656149 has 8 divisors (see below), whose sum is σ = 4360320. Its totient is φ = 2997456.

The previous prime is 3656141. The next prime is 3656179. The reversal of 3656149 is 9416563.

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

It is not a de Polignac number, because 3656149 - 2³ = 3656141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3656149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656141) 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, 11194 + ... + 11515.

It is an arithmetic number, because the mean of its divisors is an integer number (545040).

Almost surely, 2^3656149 is an apocalyptic number.

It is an amenable number.

3656149 is a deficient number, since it is larger than the sum of its proper divisors (704171).

3656149 is a wasteful number, since it uses less digits than its factorization.

3656149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22739.

The product of its digits is 19440, while the sum is 34.

The square root of 3656149 is about 1912.1059071087. The cubic root of 3656149 is about 154.0545851365.

The spelling of 3656149 in words is "three million, six hundred fifty-six thousand, one hundred forty-nine".