8397747 has 12 divisors (see below), whose sum is σ = 12169560. Its totient is φ = 5580288.

The previous prime is 8397721. The next prime is 8397751. The reversal of 8397747 is 7477938.

It is not a de Polignac number, because 8397747 - 2⁷ = 8397619 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 8⁷ + 3⁵ + 9⁶ + 7 + 7 + 4⁶ + 7⁸ .

It is not an unprimeable number, because it can be changed into a prime (8397547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1779 + ... + 4467.

It is an arithmetic number, because the mean of its divisors is an integer number (1014130).

Almost surely, 2^8397747 is an apocalyptic number.

8397747 is a deficient number, since it is larger than the sum of its proper divisors (3771813).

8397747 is a wasteful number, since it uses less digits than its factorization.

8397747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042 (or 3039 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 8397747 is about 2897.8866437457. The cubic root of 8397747 is about 203.2610956030.

The spelling of 8397747 in words is "eight million, three hundred ninety-seven thousand, seven hundred forty-seven".