9978470 has 16 divisors (see below), whose sum is σ = 18010080. Its totient is φ = 3980544.

The previous prime is 9978461. The next prime is 9978547. The reversal of 9978470 is 748799.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3254 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (1125630).

Almost surely, 2^9978470 is an apocalyptic number.

9978470 is a deficient number, since it is larger than the sum of its proper divisors (8031610).

9978470 is a wasteful number, since it uses less digits than its factorization.

9978470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 9978470 is about 3158.8716339858. The cubic root of 9978470 is about 215.2887413108.

The spelling of 9978470 in words is "nine million, nine hundred seventy-eight thousand, four hundred seventy".