999976650 has 48 divisors (see below), whose sum is σ = 2610472800. Its totient is φ = 252624960.

The previous prime is 999976643. The next prime is 999976667. The reversal of 999976650 is 56679999.

999976650 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172585 + ... + 178284.

It is an arithmetic number, because the mean of its divisors is an integer number (54384850).

Almost surely, 2^999976650 is an apocalyptic number.

999976650 is an abundant number, since it is smaller than the sum of its proper divisors (1610496150).

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

999976650 is a wasteful number, since it uses less digits than its factorization.

999976650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350903 (or 350898 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 60.

The square root of 999976650 is about 31622.4074036118. The cubic root of 999976650 is about 999.9922166061.

The spelling of 999976650 in words is "nine hundred ninety-nine million, nine hundred seventy-six thousand, six hundred fifty".