810649696 has 12 divisors (see below), whose sum is σ = 1595966652. Its totient is φ = 405324832.

The previous prime is 810649657. The next prime is 810649727. The reversal of 810649696 is 696946018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12666370 + ... + 12666433.

It is an arithmetic number, because the mean of its divisors is an integer number (132997221).

Almost surely, 2^810649696 is an apocalyptic number.

It is an amenable number.

810649696 is a deficient number, since it is larger than the sum of its proper divisors (785316956).

810649696 is a wasteful number, since it uses less digits than its factorization.

810649696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25332813 (or 25332805 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 810649696 is about 28471.9106489185. The cubic root of 810649696 is about 932.4189143820.

The spelling of 810649696 in words is "eight hundred ten million, six hundred forty-nine thousand, six hundred ninety-six".