830800505 has 8 divisors (see below), whose sum is σ = 1001098824. Its totient is φ = 661881600.

The previous prime is 830800501. The next prime is 830800513. The reversal of 830800505 is 505008038.

It can be written as a sum of positive squares in 4 ways, for example, as 372026944 + 458773561 = 19288^2 + 21419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 830800505 - 2² = 830800501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830800501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343526 + ... + 345935.

It is an arithmetic number, because the mean of its divisors is an integer number (125137353).

Almost surely, 2^830800505 is an apocalyptic number.

It is an amenable number.

830800505 is a deficient number, since it is larger than the sum of its proper divisors (170298319).

830800505 is a wasteful number, since it uses less digits than its factorization.

830800505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689707.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 830800505 is about 28823.6102006671. The cubic root of 830800505 is about 940.0816682477.

The spelling of 830800505 in words is "eight hundred thirty million, eight hundred thousand, five hundred five".