416807813 has 4 divisors (see below), whose sum is σ = 418537548. Its totient is φ = 415078080.

The previous prime is 416807791. The next prime is 416807827. The reversal of 416807813 is 318708614.

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 354681889 + 62125924 = 18833^2 + 7882^2 .

It is a cyclic number.

It is not a de Polignac number, because 416807813 - 2²⁴ = 400030597 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 (416807873) 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, 864506 + ... + 864987.

It is an arithmetic number, because the mean of its divisors is an integer number (104634387).

Almost surely, 2^416807813 is an apocalyptic number.

It is an amenable number.

416807813 is a deficient number, since it is larger than the sum of its proper divisors (1729735).

416807813 is a wasteful number, since it uses less digits than its factorization.

416807813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729734.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 416807813 is about 20415.8715954034. The cubic root of 416807813 is about 746.9851194179.

The spelling of 416807813 in words is "four hundred sixteen million, eight hundred seven thousand, eight hundred thirteen".