828820620 has 48 divisors (see below), whose sum is σ = 2578554720. Its totient is φ = 221018688.

The previous prime is 828820591. The next prime is 828820621. The reversal of 828820620 is 26028828.

828820620 is a `hidden beast` number, since 8 + 2 + 8 + 8 + 20 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (828820621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766887 + ... + 767966.

It is an arithmetic number, because the mean of its divisors is an integer number (53719890).

Almost surely, 2^828820620 is an apocalyptic number.

It is an amenable number.

828820620 is an abundant number, since it is smaller than the sum of its proper divisors (1749734100).

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

828820620 is a wasteful number, since it uses less digits than its factorization.

828820620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534871 (or 1534863 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 828820620 is about 28789.2448667901. The cubic root of 828820620 is about 939.3343030803.

The spelling of 828820620 in words is "eight hundred twenty-eight million, eight hundred twenty thousand, six hundred twenty".