3917418641 has 4 divisors (see below), whose sum is σ = 3917581284. Its totient is φ = 3917256000.

The previous prime is 3917418619. The next prime is 3917418649. The reversal of 3917418641 is 1468147193.

3917418641 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2570895616 + 1346523025 = 50704^2 + 36695^2 .

It is a cyclic number.

It is not a de Polignac number, because 3917418641 - 2⁶ = 3917418577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3917418592 and 3917418601.

It is not an unprimeable number, because it can be changed into a prime (3917418649) 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, 37220 + ... + 96021.

It is an arithmetic number, because the mean of its divisors is an integer number (979395321).

Almost surely, 2^3917418641 is an apocalyptic number.

It is an amenable number.

3917418641 is a deficient number, since it is larger than the sum of its proper divisors (162643).

3917418641 is a wasteful number, since it uses less digits than its factorization.

3917418641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162642.

The product of its digits is 145152, while the sum is 44.

The square root of 3917418641 is about 62589.2853530059. The cubic root of 3917418641 is about 1576.4008554202.

The spelling of 3917418641 in words is "three billion, nine hundred seventeen million, four hundred eighteen thousand, six hundred forty-one".