3656801 has 2 divisors, whose sum is σ = 3656802. Its totient is φ = 3656800.

The previous prime is 3656777. The next prime is 3656827. The reversal of 3656801 is 1086563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 1048576 = 1615^2 + 1024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3656801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3656881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828400 + 1828401.

It is an arithmetic number, because the mean of its divisors is an integer number (1828401).

Almost surely, 2^3656801 is an apocalyptic number.

It is an amenable number.

3656801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656801 is an equidigital number, since it uses as much as digits as its factorization.

3656801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3656801 is about 1912.2763921567. The cubic root of 3656801 is about 154.0637420955.

The spelling of 3656801 in words is "three million, six hundred fifty-six thousand, eight hundred one".