9780897 has 16 divisors (see below), whose sum is σ = 15044480. Its totient is φ = 5536512.

The previous prime is 9780893. The next prime is 9780931. The reversal of 9780897 is 7980879.

9780897 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9780897 - 2² = 9780893 is a prime.

It is a super-2 number, since 2×9780897² = 191331892249218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9780893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153 + ... + 4425.

It is an arithmetic number, because the mean of its divisors is an integer number (940280).

Almost surely, 2^9780897 is an apocalyptic number.

It is an amenable number.

9780897 is a deficient number, since it is larger than the sum of its proper divisors (5263583).

9780897 is a wasteful number, since it uses less digits than its factorization.

9780897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 9780897 is about 3127.4425654199. The cubic root of 9780897 is about 213.8583582466.

The spelling of 9780897 in words is "nine million, seven hundred eighty thousand, eight hundred ninety-seven".