9897070 has 16 divisors (see below), whose sum is σ = 17888688. Its totient is φ = 3942400.

The previous prime is 9897059. The next prime is 9897071. The reversal of 9897070 is 707989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9897071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645 + ... + 4495.

It is an arithmetic number, because the mean of its divisors is an integer number (1118043).

Almost surely, 2^9897070 is an apocalyptic number.

9897070 is a deficient number, since it is larger than the sum of its proper divisors (7991618).

9897070 is a wasteful number, since it uses less digits than its factorization.

9897070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 9897070 is about 3145.9609024907. The cubic root of 9897070 is about 214.7017317092.

The spelling of 9897070 in words is "nine million, eight hundred ninety-seven thousand, seventy".