99974422 has 8 divisors (see below), whose sum is σ = 156481776. Its totient is φ = 47813832.

The previous prime is 99974419. The next prime is 99974423. The reversal of 99974422 is 22447999.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 2173357 = 99974422 / (9 + 9 + 9 + 7 + 4 + 4 + 2 + 2).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99974423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086633 + ... + 1086724.

It is an arithmetic number, because the mean of its divisors is an integer number (19560222).

Almost surely, 2^99974422 is an apocalyptic number.

99974422 is a deficient number, since it is larger than the sum of its proper divisors (56507354).

99974422 is a wasteful number, since it uses less digits than its factorization.

99974422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173382.

The product of its digits is 326592, while the sum is 46.

The square root of 99974422 is about 9998.7210182103. The cubic root of 99974422 is about 464.1193058003.

The spelling of 99974422 in words is "ninety-nine million, nine hundred seventy-four thousand, four hundred twenty-two".