814649696 has 120 divisors (see below), whose sum is σ = 1956621744. Its totient is φ = 333231360.

The previous prime is 814649617. The next prime is 814649699. The reversal of 814649696 is 696946418.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814649699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1766906 + ... + 1767366.

Almost surely, 2^814649696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 814649696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978310872).

814649696 is an abundant number, since it is smaller than the sum of its proper divisors (1141972048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

814649696 is an equidigital number, since it uses as much as digits as its factorization.

814649696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 493 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 814649696 is about 28542.0688808643. The cubic root of 814649696 is about 933.9500146726.

The spelling of 814649696 in words is "eight hundred fourteen million, six hundred forty-nine thousand, six hundred ninety-six".