830978930 has 16 divisors (see below), whose sum is σ = 1536188760. Its totient is φ = 323407872.

The previous prime is 830978873. The next prime is 830978947. The reversal of 830978930 is 39879038.

It can be written as a sum of positive squares in 4 ways, for example, as 636906169 + 194072761 = 25237^2 + 13931^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122575 + ... + 1123314.

Almost surely, 2^830978930 is an apocalyptic number.

830978930 is a deficient number, since it is larger than the sum of its proper divisors (705209830).

830978930 is a wasteful number, since it uses less digits than its factorization.

830978930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245933.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 830978930 is about 28826.7051533816. The cubic root of 830978930 is about 940.1489616048.

The spelling of 830978930 in words is "eight hundred thirty million, nine hundred seventy-eight thousand, nine hundred thirty".