212998 has 8 divisors (see below), whose sum is σ = 321480. Its totient is φ = 105840.

The previous prime is 212987. The next prime is 212999. The reversal of 212998 is 899212.

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 (212999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373 + ... + 751.

It is an arithmetic number, because the mean of its divisors is an integer number (40185).

2²¹²⁹⁹⁸ is an apocalyptic number.

212998 is a deficient number, since it is larger than the sum of its proper divisors (108482).

212998 is a wasteful number, since it uses less digits than its factorization.

212998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its digits is 2592, while the sum is 31.

The square root of 212998 is about 461.5170636065. The cubic root of 212998 is about 59.7207392777.

The spelling of 212998 in words is "two hundred twelve thousand, nine hundred ninety-eight".