830064985 has 8 divisors (see below), whose sum is σ = 997213896. Its totient is φ = 663294720.

The previous prime is 830064971. The next prime is 830065013. The reversal of 830064985 is 589460038.

It can be written as a sum of positive squares in 4 ways, for example, as 202863049 + 627201936 = 14243^2 + 25044^2 .

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

It is not a de Polignac number, because 830064985 - 2¹⁷ = 829933913 is a prime.

It is a Duffinian 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, 89814 + ... + 98623.

It is an arithmetic number, because the mean of its divisors is an integer number (124651737).

Almost surely, 2^830064985 is an apocalyptic number.

It is an amenable number.

830064985 is a deficient number, since it is larger than the sum of its proper divisors (167148911).

830064985 is a wasteful number, since it uses less digits than its factorization.

830064985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189323.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 830064985 is about 28810.8483908406. The cubic root of 830064985 is about 939.8041635941.

The spelling of 830064985 in words is "eight hundred thirty million, sixty-four thousand, nine hundred eighty-five".