813419729 has 8 divisors (see below), whose sum is σ = 836431680. Its totient is φ = 790461936.

The previous prime is 813419713. The next prime is 813419743. The reversal of 813419729 is 927914318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 813419729 - 2⁴ = 813419713 is a prime.

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 813419729.

It is not an unprimeable number, because it can be changed into a prime (813419129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17942 + ... + 44144.

It is an arithmetic number, because the mean of its divisors is an integer number (104553960).

Almost surely, 2^813419729 is an apocalyptic number.

It is an amenable number.

813419729 is a deficient number, since it is larger than the sum of its proper divisors (23011951).

813419729 is a wasteful number, since it uses less digits than its factorization.

813419729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27079.

The product of its digits is 108864, while the sum is 44.

The square root of 813419729 is about 28520.5141783945. The cubic root of 813419729 is about 933.4797486146.

The spelling of 813419729 in words is "eight hundred thirteen million, four hundred nineteen thousand, seven hundred twenty-nine".