4212991 has 8 divisors (see below), whose sum is σ = 4518720. Its totient is φ = 3913728.

The previous prime is 4212983. The next prime is 4213019. The reversal of 4212991 is 1992124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4212991 - 2³ = 4212983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (564840).

Almost surely, 2^4212991 is an apocalyptic number.

4212991 is a deficient number, since it is larger than the sum of its proper divisors (305729).

4212991 is a wasteful number, since it uses less digits than its factorization.

4212991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233.

The product of its digits is 1296, while the sum is 28.

The square root of 4212991 is about 2052.5571855615. The cubic root of 4212991 is about 161.5090430002.

The spelling of 4212991 in words is "four million, two hundred twelve thousand, nine hundred ninety-one".