9978454 has 8 divisors (see below), whose sum is σ = 14981688. Its totient is φ = 4984560.

The previous prime is 9978431. The next prime is 9978461. The reversal of 9978454 is 4548799.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809 + ... + 4819.

It is an arithmetic number, because the mean of its divisors is an integer number (1872711).

Almost surely, 2^9978454 is an apocalyptic number.

9978454 is a deficient number, since it is larger than the sum of its proper divisors (5003234).

9978454 is a wasteful number, since it uses less digits than its factorization.

9978454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670.

The product of its digits is 362880, while the sum is 46.

The square root of 9978454 is about 3158.8691014349. The cubic root of 9978454 is about 215.2886262424.

The spelling of 9978454 in words is "nine million, nine hundred seventy-eight thousand, four hundred fifty-four".