8397072 has 30 divisors (see below), whose sum is σ = 23500542. Its totient is φ = 2798976.

The previous prime is 8397041. The next prime is 8397073. The reversal of 8397072 is 2707938.

It can be written as a sum of positive squares in only one way, i.e., 7750656 + 646416 = 2784^2 + 804^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8397073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29013 + ... + 29300.

Almost surely, 2^8397072 is an apocalyptic number.

It is an amenable number.

8397072 is an abundant number, since it is smaller than the sum of its proper divisors (15103470).

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

8397072 is a wasteful number, since it uses less digits than its factorization.

8397072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58327 (or 58318 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 8397072 is about 2897.7701772225. The cubic root of 8397072 is about 203.2556495028.

The spelling of 8397072 in words is "eight million, three hundred ninety-seven thousand, seventy-two".