947900930 has 8 divisors (see below), whose sum is σ = 1706221692. Its totient is φ = 379160368.

The previous prime is 947900927. The next prime is 947900939. The reversal of 947900930 is 39009749.

947900930 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 929091361 + 18809569 = 30481^2 + 4337^2 .

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 (947900939) 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, 47395037 + ... + 47395056.

Almost surely, 2^947900930 is an apocalyptic number.

947900930 is a deficient number, since it is larger than the sum of its proper divisors (758320762).

947900930 is a wasteful number, since it uses less digits than its factorization.

947900930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94790100.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 947900930 is about 30787.9997726387. Note that the first 3 decimals coincide. The cubic root of 947900930 is about 982.3230085175.

The spelling of 947900930 in words is "nine hundred forty-seven million, nine hundred thousand, nine hundred thirty".