999470025 has 36 divisors (see below), whose sum is σ = 1823960268. Its totient is φ = 522986880.

The previous prime is 999470009. The next prime is 999470033. The reversal of 999470025 is 520074999.

It can be written as a sum of positive squares in 6 ways, for example, as 53538489 + 945931536 = 7317^2 + 30756^2 .

It is not a de Polignac number, because 999470025 - 2⁴ = 999470009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29982 + ... + 53831.

It is an arithmetic number, because the mean of its divisors is an integer number (50665563).

Almost surely, 2^999470025 is an apocalyptic number.

It is an amenable number.

999470025 is a deficient number, since it is larger than the sum of its proper divisors (824490243).

999470025 is a wasteful number, since it uses less digits than its factorization.

999470025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83882 (or 83874 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 999470025 is about 31614.3958506248. The cubic root of 999470025 is about 999.8233104493.

The spelling of 999470025 in words is "nine hundred ninety-nine million, four hundred seventy thousand, twenty-five".