416856823 has 4 divisors (see below), whose sum is σ = 419512120. Its totient is φ = 414201528.

The previous prime is 416856767. The next prime is 416856829. The reversal of 416856823 is 328658614.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 416856823 - 2¹³ = 416848631 is a prime.

It is a super-2 number, since 2×416856823² = 347539221763306658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 416856823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416856829) 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, 1327413 + ... + 1327726.

It is an arithmetic number, because the mean of its divisors is an integer number (104878030).

Almost surely, 2^416856823 is an apocalyptic number.

416856823 is a deficient number, since it is larger than the sum of its proper divisors (2655297).

416856823 is a wasteful number, since it uses less digits than its factorization.

416856823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655296.

The product of its digits is 276480, while the sum is 43.

The square root of 416856823 is about 20417.0718517617. The cubic root of 416856823 is about 747.0143961451.

The spelling of 416856823 in words is "four hundred sixteen million, eight hundred fifty-six thousand, eight hundred twenty-three".