3211998 has 8 divisors (see below), whose sum is σ = 6424008. Its totient is φ = 1070664.

The previous prime is 3211987. The next prime is 3212009. The reversal of 3211998 is 8991123.

It is an interprime number because it is at equal distance from previous prime (3211987) and next prime (3212009).

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

3211998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267661 + ... + 267672.

It is an arithmetic number, because the mean of its divisors is an integer number (803001).

Almost surely, 2^3211998 is an apocalyptic number.

3211998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3211998 is a wasteful number, since it uses less digits than its factorization.

3211998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535338.

The product of its digits is 3888, while the sum is 33.

The square root of 3211998 is about 1792.2047874057. The cubic root of 3211998 is about 147.5452011233.

The spelling of 3211998 in words is "three million, two hundred eleven thousand, nine hundred ninety-eight".