8472997 has 4 divisors (see below), whose sum is σ = 9124780. Its totient is φ = 7821216.

The previous prime is 8472983. The next prime is 8473001. The reversal of 8472997 is 7992748.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4004001 + 4468996 = 2001^2 + 2114^2 .

It is not a de Polignac number, because 8472997 - 2⁷ = 8472869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8472977) 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, 325872 + ... + 325897.

It is an arithmetic number, because the mean of its divisors is an integer number (2281195).

Almost surely, 2^8472997 is an apocalyptic number.

It is an amenable number.

8472997 is a deficient number, since it is larger than the sum of its proper divisors (651783).

8472997 is a wasteful number, since it uses less digits than its factorization.

8472997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651782.

The product of its digits is 254016, while the sum is 46.

The square root of 8472997 is about 2910.8412873257. The cubic root of 8472997 is about 203.8664142088.

Subtracting from 8472997 its reverse (7992748), we obtain a square (480249 = 693²).

It can be divided in two parts, 847 and 2997, that added together give a square (3844 = 62²).

The spelling of 8472997 in words is "eight million, four hundred seventy-two thousand, nine hundred ninety-seven".