99847451 has 8 divisors (see below), whose sum is σ = 114657600. Its totient is φ = 85992840.

The previous prime is 99847441. The next prime is 99847457. The reversal of 99847451 is 15474899.

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

It is a cyclic number.

It is not a de Polignac number, because 99847451 - 2¹⁸ = 99585307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99847396 and 99847405.

It is not an unprimeable number, because it can be changed into a prime (99847457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238661 + ... + 239078.

It is an arithmetic number, because the mean of its divisors is an integer number (14332200).

Almost surely, 2^99847451 is an apocalyptic number.

99847451 is a deficient number, since it is larger than the sum of its proper divisors (14810149).

99847451 is a wasteful number, since it uses less digits than its factorization.

99847451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477769.

The product of its digits is 362880, while the sum is 47.

The square root of 99847451 is about 9992.3696388795. The cubic root of 99847451 is about 463.9227399974.

The spelling of 99847451 in words is "ninety-nine million, eight hundred forty-seven thousand, four hundred fifty-one".