9870235920 has 60 divisors (see below), whose sum is σ = 33147544716. Its totient is φ = 2632062720.

The previous prime is 9870235909. The next prime is 9870236027. The reversal of 9870235920 is 295320789.

It can be written as a sum of positive squares in 2 ways, for example, as 4782552336 + 5087683584 = 69156^2 + 71328^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6853611 + ... + 6855050.

Almost surely, 2^9870235920 is an apocalyptic number.

9870235920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9870235920 is an abundant number, since it is smaller than the sum of its proper divisors (23277308796).

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

9870235920 is a wasteful number, since it uses less digits than its factorization.

9870235920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13708680 (or 13708671 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 9870235920 is about 99349.0609920396. The cubic root of 9870235920 is about 2145.0751469264.

The spelling of 9870235920 in words is "nine billion, eight hundred seventy million, two hundred thirty-five thousand, nine hundred twenty".