99984422 has 16 divisors (see below), whose sum is σ = 158699760. Its totient is φ = 47112192.

The previous prime is 99984421. The next prime is 99984439. The reversal of 99984422 is 22448999.

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 (99984421) 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, 518 + ... + 14150.

It is an arithmetic number, because the mean of its divisors is an integer number (9918735).

Almost surely, 2^99984422 is an apocalyptic number.

99984422 is a deficient number, since it is larger than the sum of its proper divisors (58715338).

99984422 is a wasteful number, since it uses less digits than its factorization.

99984422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847.

The product of its digits is 373248, while the sum is 47.

The square root of 99984422 is about 9999.2210696634. The cubic root of 99984422 is about 464.1347798860.

It can be divided in two parts, 999 and 84422, that multiplied together give a triangular number (84337578 = T₁₂₉₈₇).

The spelling of 99984422 in words is "ninety-nine million, nine hundred eighty-four thousand, four hundred twenty-two".