9992970 has 120 divisors (see below), whose sum is σ = 29494476. Its totient is φ = 2426112.

The previous prime is 9992963. The next prime is 9993019. The reversal of 9992970 is 792999.

It can be written as a sum of positive squares in 6 ways, for example, as 1225449 + 8767521 = 1107^2 + 2961^2 .

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

It is a Curzon number.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 136854 + ... + 136926.

Almost surely, 2^9992970 is an apocalyptic number.

9992970 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9992970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14747238).

9992970 is an abundant number, since it is smaller than the sum of its proper divisors (19501506).

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

9992970 is a wasteful number, since it uses less digits than its factorization.

9992970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 9992970 is about 3161.1659241489. The cubic root of 9992970 is about 215.3929715819.

It can be divided in two parts, 99929 and 70, that added together give a palindrome (99999).

The spelling of 9992970 in words is "nine million, nine hundred ninety-two thousand, nine hundred seventy".