841810013 has 4 divisors (see below), whose sum is σ = 918338208. Its totient is φ = 765281820.

The previous prime is 841810001. The next prime is 841810027. The reversal of 841810013 is 310018148.

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 841810013 - 2²⁶ = 774701149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841810033) 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, 38264081 + ... + 38264102.

It is an arithmetic number, because the mean of its divisors is an integer number (229584552).

Almost surely, 2^841810013 is an apocalyptic number.

It is an amenable number.

841810013 is a deficient number, since it is larger than the sum of its proper divisors (76528195).

841810013 is a wasteful number, since it uses less digits than its factorization.

841810013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76528194.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 841810013 is about 29013.9623802058. The cubic root of 841810013 is about 944.2160152291.

The spelling of 841810013 in words is "eight hundred forty-one million, eight hundred ten thousand, thirteen".