8472939 has 4 divisors (see below), whose sum is σ = 11297256. Its totient is φ = 5648624.

The previous prime is 8472923. The next prime is 8472941. The reversal of 8472939 is 9392748.

8472939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8472939 - 2⁴ = 8472923 is a prime.

8472939 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8472939.

It is not an unprimeable number, because it can be changed into a prime (8472539) 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, 1412154 + ... + 1412159.

It is an arithmetic number, because the mean of its divisors is an integer number (2824314).

Almost surely, 2^8472939 is an apocalyptic number.

8472939 is a deficient number, since it is larger than the sum of its proper divisors (2824317).

8472939 is a wasteful number, since it uses less digits than its factorization.

8472939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824316.

The product of its digits is 108864, while the sum is 42.

The square root of 8472939 is about 2910.8313245532. The cubic root of 8472939 is about 203.8659490338.

The spelling of 8472939 in words is "eight million, four hundred seventy-two thousand, nine hundred thirty-nine".