830621028 has 24 divisors (see below), whose sum is σ = 1938589632. Its totient is φ = 276805984.

The previous prime is 830621023. The next prime is 830621063. The reversal of 830621028 is 820126038.

It is a junction number, because it is equal to n+sod(n) for n = 830620986 and 830621004.

It is not an unprimeable number, because it can be changed into a prime (830621023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78001 + ... + 88007.

It is an arithmetic number, because the mean of its divisors is an integer number (80774568).

Almost surely, 2^830621028 is an apocalyptic number.

It is an amenable number.

830621028 is an abundant number, since it is smaller than the sum of its proper divisors (1107968604).

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

830621028 is a wasteful number, since it uses less digits than its factorization.

830621028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16931 (or 16929 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 830621028 is about 28820.4966647003. The cubic root of 830621028 is about 940.0139684057.

The spelling of 830621028 in words is "eight hundred thirty million, six hundred twenty-one thousand, twenty-eight".