9978070 has 8 divisors (see below), whose sum is σ = 17960544. Its totient is φ = 3991224.

The previous prime is 9978041. The next prime is 9978079. The reversal of 9978070 is 708799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9978079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498894 + ... + 498913.

It is an arithmetic number, because the mean of its divisors is an integer number (2245068).

Almost surely, 2^9978070 is an apocalyptic number.

9978070 is a deficient number, since it is larger than the sum of its proper divisors (7982474).

9978070 is a wasteful number, since it uses less digits than its factorization.

9978070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997814.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 9978070 is about 3158.8083196041. The cubic root of 9978070 is about 215.2858645623.

The spelling of 9978070 in words is "nine million, nine hundred seventy-eight thousand, seventy".