999065670 has 16 divisors (see below), whose sum is σ = 2397757680. Its totient is φ = 266417504.

The previous prime is 999065647. The next prime is 999065671. The reversal of 999065670 is 76560999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999065671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16651065 + ... + 16651124.

It is an arithmetic number, because the mean of its divisors is an integer number (149859855).

Almost surely, 2^999065670 is an apocalyptic number.

999065670 is an abundant number, since it is smaller than the sum of its proper divisors (1398692010).

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

999065670 is a wasteful number, since it uses less digits than its factorization.

999065670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33302199.

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 999065670 is about 31608.0000949127. Note that the first 4 decimals coincide. The cubic root of 999065670 is about 999.6884596193.

The spelling of 999065670 in words is "nine hundred ninety-nine million, sixty-five thousand, six hundred seventy".