2173036947 has 8 divisors (see below), whose sum is σ = 2897602560. Its totient is φ = 1448581320.

The previous prime is 2173036939. The next prime is 2173036979. The reversal of 2173036947 is 7496303712.

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

It is not a de Polignac number, because 2173036947 - 2³ = 2173036939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2173036899 and 2173036908.

It is not an unprimeable number, because it can be changed into a prime (2173036907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49054 + ... + 82172.

It is an arithmetic number, because the mean of its divisors is an integer number (362200320).

Almost surely, 2^2173036947 is an apocalyptic number.

2173036947 is a deficient number, since it is larger than the sum of its proper divisors (724565613).

2173036947 is a wasteful number, since it uses less digits than its factorization.

2173036947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54993.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 2173036947 is about 46615.8443772072. The cubic root of 2173036947 is about 1295.2562706454.

The spelling of 2173036947 in words is "two billion, one hundred seventy-three million, thirty-six thousand, nine hundred forty-seven".