9899370 has 48 divisors (see below), whose sum is σ = 27721512. Its totient is φ = 2436480.

The previous prime is 9899363. The next prime is 9899371. The reversal of 9899370 is 739989.

It is a happy number.

9899370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7834401 + 2064969 = 2799^2 + 1437^2 .

It is a super-4 number, since 4×9899370⁴ (a number of 29 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (9899371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3061 + ... + 5400.

Almost surely, 2^9899370 is an apocalyptic number.

9899370 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9899370 is an abundant number, since it is smaller than the sum of its proper divisors (17822142).

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

9899370 is a wasteful number, since it uses less digits than its factorization.

9899370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8487 (or 8484 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9899370 is about 3146.3264293458. The cubic root of 9899370 is about 214.7183620767.

The spelling of 9899370 in words is "nine million, eight hundred ninety-nine thousand, three hundred seventy".