212398 has 8 divisors (see below), whose sum is σ = 337392. Its totient is φ = 99936.

The previous prime is 212383. The next prime is 212411. The reversal of 212398 is 893212.

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

It is a super-2 number, since 2×212398² = 90225820808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

212398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3090 + ... + 3157.

It is an arithmetic number, because the mean of its divisors is an integer number (42174).

2²¹²³⁹⁸ is an apocalyptic number.

212398 is a deficient number, since it is larger than the sum of its proper divisors (124994).

212398 is a wasteful number, since it uses less digits than its factorization.

212398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266.

The product of its digits is 864, while the sum is 25.

The square root of 212398 is about 460.8665750518. The cubic root of 212398 is about 59.6646102028.

The spelling of 212398 in words is "two hundred twelve thousand, three hundred ninety-eight".