820694346 has 16 divisors (see below), whose sum is σ = 1737941184. Its totient is φ = 257472704.

The previous prime is 820694333. The next prime is 820694351. The reversal of 820694346 is 643496028.

It is a happy number.

820694346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 820694298 and 820694307.

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, 4022910 + ... + 4023113.

It is an arithmetic number, because the mean of its divisors is an integer number (108621324).

Almost surely, 2^820694346 is an apocalyptic number.

820694346 is an abundant number, since it is smaller than the sum of its proper divisors (917246838).

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

820694346 is a wasteful number, since it uses less digits than its factorization.

820694346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8046045.

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 820694346 is about 28647.7633681933. The cubic root of 820694346 is about 936.2542751897.

The spelling of 820694346 in words is "eight hundred twenty million, six hundred ninety-four thousand, three hundred forty-six".