9937020856 has 24 divisors (see below), whose sum is σ = 21673860120. Its totient is φ = 4258723056.

The previous prime is 9937020853. The next prime is 9937020959. The reversal of 9937020856 is 6580207399.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9937020853) 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, 12674380 + ... + 12675163.

It is an arithmetic number, because the mean of its divisors is an integer number (903077505).

Almost surely, 2^9937020856 is an apocalyptic number.

It is an amenable number.

9937020856 is an abundant number, since it is smaller than the sum of its proper divisors (11736839264).

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

9937020856 is a wasteful number, since it uses less digits than its factorization.

9937020856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25349563 (or 25349552 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 9937020856 is about 99684.6069160129. The cubic root of 9937020856 is about 2149.9023468176.

The spelling of 9937020856 in words is "nine billion, nine hundred thirty-seven million, twenty thousand, eight hundred fifty-six".