8407897 has 6 divisors (see below), whose sum is σ = 8539818. Its totient is φ = 8277984.

The previous prime is 8407879. The next prime is 8407907. The reversal of 8407897 is 7987048.

It can be written as a sum of positive squares in only one way, i.e., 4888521 + 3519376 = 2211^2 + 1876^2 .

It is not a de Polignac number, because 8407897 - 2¹¹ = 8405849 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 4¹¹ + 0 + 7⁴ + 8⁷ + 9² + 7⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8407837) 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, 3553 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (1423303).

Almost surely, 2^8407897 is an apocalyptic number.

It is an amenable number.

8407897 is a deficient number, since it is larger than the sum of its proper divisors (131921).

8407897 is an equidigital number, since it uses as much as digits as its factorization.

8407897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 8407897 is about 2899.6373911232. The cubic root of 8407897 is about 203.3429536492.

The spelling of 8407897 in words is "eight million, four hundred seven thousand, eight hundred ninety-seven".