3655746401 has 4 divisors (see below), whose sum is σ = 3659527872. Its totient is φ = 3651964932.

The previous prime is 3655746397. The next prime is 3655746421. The reversal of 3655746401 is 1046475563.

3655746401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3655746401 - 2² = 3655746397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3655746421) 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, 1889285 + ... + 1891218.

It is an arithmetic number, because the mean of its divisors is an integer number (914881968).

Almost surely, 2^3655746401 is an apocalyptic number.

It is an amenable number.

3655746401 is a deficient number, since it is larger than the sum of its proper divisors (3781471).

3655746401 is an equidigital number, since it uses as much as digits as its factorization.

3655746401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781470.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 3655746401 is about 60462.7687176166. The cubic root of 3655746401 is about 1540.4893032514.

The spelling of 3655746401 in words is "three billion, six hundred fifty-five million, seven hundred forty-six thousand, four hundred one".