820984376 has 16 divisors (see below), whose sum is σ = 1620364200. Its totient is φ = 388887264.

The previous prime is 820984343. The next prime is 820984393. The reversal of 820984376 is 673489028.

It is a super-2 number, since 2×820984376² = 1348030691272218752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 820984376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2700455 + ... + 2700758.

Almost surely, 2^820984376 is an apocalyptic number.

It is an amenable number.

820984376 is a deficient number, since it is larger than the sum of its proper divisors (799379824).

820984376 is a wasteful number, since it uses less digits than its factorization.

820984376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5401238 (or 5401234 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 820984376 is about 28652.8249218118. The cubic root of 820984376 is about 936.3645516679.

The spelling of 820984376 in words is "eight hundred twenty million, nine hundred eighty-four thousand, three hundred seventy-six".