9999454 has 4 divisors (see below), whose sum is σ = 14999184. Its totient is φ = 4999726.

The previous prime is 9999433. The next prime is 9999463. The reversal of 9999454 is 4549999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4549999 = 17 ⋅267647.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9999398 and 9999407.

It is a congruent 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 as a sum of consecutive naturals, namely, 2499862 + ... + 2499865.

It is an arithmetic number, because the mean of its divisors is an integer number (3749796).

Almost surely, 2^9999454 is an apocalyptic number.

9999454 is a deficient number, since it is larger than the sum of its proper divisors (4999730).

9999454 is a wasteful number, since it uses less digits than its factorization.

9999454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999729.

The product of its digits is 524880, while the sum is 49.

The square root of 9999454 is about 3162.1913288098. The cubic root of 9999454 is about 215.4395478607.

The spelling of 9999454 in words is "nine million, nine hundred ninety-nine thousand, four hundred fifty-four".