999470069 has 16 divisors (see below), whose sum is σ = 1141343280. Its totient is φ = 867041280.

The previous prime is 999470051. The next prime is 999470111. The reversal of 999470069 is 960074999.

It can be written as a sum of positive squares in 8 ways, for example, as 6400900 + 993069169 = 2530^2 + 31513^2 .

It is a cyclic number.

It is not a de Polignac number, because 999470069 - 2²⁰ = 998421493 is a prime.

It is a super-2 number, since 2×999470069² = 1997880837653729522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999470069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999470009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167009 + ... + 172889.

It is an arithmetic number, because the mean of its divisors is an integer number (71333955).

Almost surely, 2^999470069 is an apocalyptic number.

It is an amenable number.

999470069 is a deficient number, since it is larger than the sum of its proper divisors (141873211).

999470069 is a wasteful number, since it uses less digits than its factorization.

999470069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 999470069 is about 31614.3965465103. The cubic root of 999470069 is about 999.8233251212.

The spelling of 999470069 in words is "nine hundred ninety-nine million, four hundred seventy thousand, sixty-nine".