3413805781 has 4 divisors (see below), whose sum is σ = 3414293100. Its totient is φ = 3413318464.

The previous prime is 3413805767. The next prime is 3413805793. The reversal of 3413805781 is 1875083143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1875083143 = 31 ⋅60486553.

It can be written as a sum of positive squares in 2 ways, for example, as 325225156 + 3088580625 = 18034^2 + 55575^2 .

It is a cyclic number.

It is not a de Polignac number, because 3413805781 - 2¹¹ = 3413803733 is a prime.

It is a super-2 number, since 2×3413805781² = 23308139820778039922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3413805701) 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, 232996 + ... + 247213.

It is an arithmetic number, because the mean of its divisors is an integer number (853573275).

Almost surely, 2^3413805781 is an apocalyptic number.

It is an amenable number.

3413805781 is a deficient number, since it is larger than the sum of its proper divisors (487319).

3413805781 is an equidigital number, since it uses as much as digits as its factorization.

3413805781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487318.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 3413805781 is about 58427.7826123840. The cubic root of 3413805781 is about 1505.7271102355.

The spelling of 3413805781 in words is "three billion, four hundred thirteen million, eight hundred five thousand, seven hundred eighty-one".