9950978 has 8 divisors (see below), whose sum is σ = 14950668. Its totient is φ = 4967424.

The previous prime is 9950977. The next prime is 9950989. The reversal of 9950978 is 8790599.

9950978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9223369 + 727609 = 3037^2 + 853^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9950977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351 + ... + 5042.

Almost surely, 2^9950978 is an apocalyptic number.

9950978 is a deficient number, since it is larger than the sum of its proper divisors (4999690).

9950978 is a wasteful number, since it uses less digits than its factorization.

9950978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 9950978 is about 3154.5170787301. The cubic root of 9950978 is about 215.0908431686.

The spelling of 9950978 in words is "nine million, nine hundred fifty thousand, nine hundred seventy-eight".