8203247172 has 18 divisors (see below), whose sum is σ = 20735985998. Its totient is φ = 2734415712.

The previous prime is 8203247153. The next prime is 8203247209. The reversal of 8203247172 is 2717423028.

It can be written as a sum of positive squares in only one way, i.e., 7959137796 + 244109376 = 89214^2 + 15624^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 227867977 = 8203247172 / (8 + 2 + 0 + 3 + 2 + 4 + 7 + 1 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113933953 + ... + 113934024.

Almost surely, 2^8203247172 is an apocalyptic number.

It is an amenable number.

8203247172 is an abundant number, since it is smaller than the sum of its proper divisors (12532738826).

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

8203247172 is a wasteful number, since it uses less digits than its factorization.

8203247172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227867987 (or 227867982 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 8203247172 is about 90571.7791146889. The cubic root of 8203247172 is about 2016.7958197123.

The spelling of 8203247172 in words is "eight billion, two hundred three million, two hundred forty-seven thousand, one hundred seventy-two".