84201998 has 8 divisors (see below), whose sum is σ = 129240408. Its totient is φ = 41121864.

The previous prime is 84201991. The next prime is 84202009. The reversal of 84201998 is 89910248.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84201991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489461 + ... + 489632.

It is an arithmetic number, because the mean of its divisors is an integer number (16155051).

Almost surely, 2^84201998 is an apocalyptic number.

84201998 is a deficient number, since it is larger than the sum of its proper divisors (45038410).

84201998 is a wasteful number, since it uses less digits than its factorization.

84201998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979138.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 84201998 is about 9176.1646672234. The cubic root of 84201998 is about 438.3026861843.

The spelling of 84201998 in words is "eighty-four million, two hundred one thousand, nine hundred ninety-eight".