820309096 has 32 divisors (see below), whose sum is σ = 1566943200. Its totient is φ = 402482880.

The previous prime is 820309069. The next prime is 820309111. The reversal of 820309096 is 690903028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344791 + ... + 347161.

It is an arithmetic number, because the mean of its divisors is an integer number (48966975).

Almost surely, 2^820309096 is an apocalyptic number.

It is an amenable number.

820309096 is a deficient number, since it is larger than the sum of its proper divisors (746634104).

820309096 is a wasteful number, since it uses less digits than its factorization.

820309096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3165 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 820309096 is about 28641.0386683165. The cubic root of 820309096 is about 936.1077535626.

The spelling of 820309096 in words is "eight hundred twenty million, three hundred nine thousand, ninety-six".