9998970 has 16 divisors (see below), whose sum is σ = 23997600. Its totient is φ = 2666384.

The previous prime is 9998969. The next prime is 9998971. The reversal of 9998970 is 798999.

It is an interprime number because it is at equal distance from previous prime (9998969) and next prime (9998971).

It is not an unprimeable number, because it can be changed into a prime (9998971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 166620 + ... + 166679.

It is an arithmetic number, because the mean of its divisors is an integer number (1499850).

Almost surely, 2^9998970 is an apocalyptic number.

9998970 is an abundant number, since it is smaller than the sum of its proper divisors (13998630).

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

9998970 is a wasteful number, since it uses less digits than its factorization.

9998970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333309.

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 9998970 is about 3162.1147986751. The cubic root of 9998970 is about 215.4360718568.

The spelling of 9998970 in words is "nine million, nine hundred ninety-eight thousand, nine hundred seventy".