9839897070 has 16 divisors (see below), whose sum is σ = 23615753040. Its totient is φ = 2623972544.

The previous prime is 9839897059. The next prime is 9839897071. The reversal of 9839897070 is 707989389.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9839896995 and 9839897013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9839897071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163998255 + ... + 163998314.

It is an arithmetic number, because the mean of its divisors is an integer number (1475984565).

Almost surely, 2^9839897070 is an apocalyptic number.

9839897070 is an abundant number, since it is smaller than the sum of its proper divisors (13775855970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9839897070 is a wasteful number, since it uses less digits than its factorization.

9839897070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327996579.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The square root of 9839897070 is about 99196.2553224667. The cubic root of 9839897070 is about 2142.8750675770.

The spelling of 9839897070 in words is "nine billion, eight hundred thirty-nine million, eight hundred ninety-seven thousand, seventy".