830720965 has 8 divisors (see below), whose sum is σ = 998448768. Its totient is φ = 663521040.

The previous prime is 830720951. The next prime is 830720987. The reversal of 830720965 is 569027038.

830720965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 830720965 - 2¹⁵ = 830688197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128497 + ... + 134806.

It is an arithmetic number, because the mean of its divisors is an integer number (124806096).

Almost surely, 2^830720965 is an apocalyptic number.

It is an amenable number.

830720965 is a deficient number, since it is larger than the sum of its proper divisors (167727803).

830720965 is a wasteful number, since it uses less digits than its factorization.

830720965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263939.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 830720965 is about 28822.2303959982. The cubic root of 830720965 is about 940.0516664675.

The spelling of 830720965 in words is "eight hundred thirty million, seven hundred twenty thousand, nine hundred sixty-five".