820386622 has 32 divisors (see below), whose sum is σ = 1369872000. Its totient is φ = 365330400.

The previous prime is 820386613. The next prime is 820386631. The reversal of 820386622 is 226683028.

It is an interprime number because it is at equal distance from previous prime (820386613) and next prime (820386631).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452097 + ... + 453907.

It is an arithmetic number, because the mean of its divisors is an integer number (42808500).

Almost surely, 2^820386622 is an apocalyptic number.

820386622 is a deficient number, since it is larger than the sum of its proper divisors (549485378).

820386622 is a wasteful number, since it uses less digits than its factorization.

820386622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 820386622 is about 28642.3920439617. The cubic root of 820386622 is about 936.1372426109.

The spelling of 820386622 in words is "eight hundred twenty million, three hundred eighty-six thousand, six hundred twenty-two".