9874451 has 2 divisors, whose sum is σ = 9874452. Its totient is φ = 9874450.

The previous prime is 9874441. The next prime is 9874453. The reversal of 9874451 is 1544789.

It is a strong prime.

It is an emirp because it is prime and its reverse (1544789) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9874451 is a prime.

Together with 9874453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9874453) by changing a digit.

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, 4937225 + 4937226.

It is an arithmetic number, because the mean of its divisors is an integer number (4937226).

Almost surely, 2^9874451 is an apocalyptic number.

9874451 is a deficient number, since it is larger than the sum of its proper divisors (1).

9874451 is an equidigital number, since it uses as much as digits as its factorization.

9874451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 9874451 is about 3142.3639190902. The cubic root of 9874451 is about 214.5380454609.

The spelling of 9874451 in words is "nine million, eight hundred seventy-four thousand, four hundred fifty-one".