84211398 has 24 divisors (see below), whose sum is σ = 183053208. Its totient is φ = 27978912.

The previous prime is 84211397. The next prime is 84211399. The reversal of 84211398 is 89311248.

It is an interprime number because it is at equal distance from previous prime (84211397) and next prime (84211399).

It is a super-2 number, since 2×84211398² = 14183119106228808, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84211397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1840 + ... + 13107.

It is an arithmetic number, because the mean of its divisors is an integer number (7627217).

Almost surely, 2^84211398 is an apocalyptic number.

84211398 is an abundant number, since it is smaller than the sum of its proper divisors (98841810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84211398 is a wasteful number, since it uses less digits than its factorization.

84211398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15268 (or 15265 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 84211398 is about 9176.6768494919. The cubic root of 84211398 is about 438.3189957416.

The spelling of 84211398 in words is "eighty-four million, two hundred eleven thousand, three hundred ninety-eight".