3953246641 has 4 divisors (see below), whose sum is σ = 3953512692. Its totient is φ = 3952980592.

The previous prime is 3953246603. The next prime is 3953246651. The reversal of 3953246641 is 1466423593.

3953246641 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 an emirpimes, since its reverse is a distinct semiprime: 1466423593 = 97 ⋅15117769.

It can be written as a sum of positive squares in 2 ways, for example, as 1241857600 + 2711389041 = 35240^2 + 52071^2 .

It is a cyclic number.

It is not a de Polignac number, because 3953246641 - 2⁷ = 3953246513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3953246651) 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, 109330 + ... + 140923.

It is an arithmetic number, because the mean of its divisors is an integer number (988378173).

Almost surely, 2^3953246641 is an apocalyptic number.

It is an amenable number.

3953246641 is a deficient number, since it is larger than the sum of its proper divisors (266051).

3953246641 is a wasteful number, since it uses less digits than its factorization.

3953246641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266050.

The product of its digits is 466560, while the sum is 43.

The square root of 3953246641 is about 62874.8490336160. The cubic root of 3953246641 is about 1581.1921037278.

The spelling of 3953246641 in words is "three billion, nine hundred fifty-three million, two hundred forty-six thousand, six hundred forty-one".