413756813 has 4 divisors (see below), whose sum is σ = 413801760. Its totient is φ = 413711868.

The previous prime is 413756809. The next prime is 413756843. The reversal of 413756813 is 318657314.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 318657314 = 2 ⋅159328657.

It is a cyclic number.

It is not a de Polignac number, because 413756813 - 2² = 413756809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413756803) 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, 3095 + ... + 28932.

It is an arithmetic number, because the mean of its divisors is an integer number (103450440).

Almost surely, 2^413756813 is an apocalyptic number.

It is an amenable number.

413756813 is a deficient number, since it is larger than the sum of its proper divisors (44947).

413756813 is a wasteful number, since it uses less digits than its factorization.

413756813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44946.

The product of its digits is 60480, while the sum is 38.

The square root of 413756813 is about 20341.0130770323. The cubic root of 413756813 is about 745.1580302270.

The spelling of 413756813 in words is "four hundred thirteen million, seven hundred fifty-six thousand, eight hundred thirteen".