3656371 has 2 divisors, whose sum is σ = 3656372. Its totient is φ = 3656370.

The previous prime is 3656369. The next prime is 3656383. The reversal of 3656371 is 1736563.

It is a weak prime.

It is an emirp because it is prime and its reverse (1736563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3656371 - 2¹ = 3656369 is a prime.

Together with 3656369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3656321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828185 + 1828186.

It is an arithmetic number, because the mean of its divisors is an integer number (1828186).

Almost surely, 2^3656371 is an apocalyptic number.

3656371 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656371 is an equidigital number, since it uses as much as digits as its factorization.

3656371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 31.

The square root of 3656371 is about 1912.1639574053. The cubic root of 3656371 is about 154.0577031190.

The spelling of 3656371 in words is "three million, six hundred fifty-six thousand, three hundred seventy-one".