8400897 has 6 divisors (see below), whose sum is σ = 12134642. Its totient is φ = 5600592.

The previous prime is 8400883. The next prime is 8400901. The reversal of 8400897 is 7980048.

8400897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6395841 + 2005056 = 2529^2 + 1416^2 .

It is not a de Polignac number, because 8400897 - 2¹⁰ = 8399873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8400097) 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, 466708 + ... + 466725.

It is a Proth number, since it is equal to 2051 ⋅ 2¹² + 1 and 2051 < 2¹².

Almost surely, 2^8400897 is an apocalyptic number.

It is an amenable number.

8400897 is a deficient number, since it is larger than the sum of its proper divisors (3733745).

8400897 is a wasteful number, since it uses less digits than its factorization.

8400897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933439 (or 933436 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8400897 is about 2898.4300923086. The cubic root of 8400897 is about 203.2865068795.

The spelling of 8400897 in words is "eight million, four hundred thousand, eight hundred ninety-seven".