212620933 has 8 divisors (see below), whose sum is σ = 244744640. Its totient is φ = 180934560.

The previous prime is 212620883. The next prime is 212620999. The reversal of 212620933 is 339026212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212620933 is a prime.

It is a super-2 number, since 2×212620933² = 90415322299580978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212620333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108288 + ... + 110233.

It is an arithmetic number, because the mean of its divisors is an integer number (30593080).

Almost surely, 2^212620933 is an apocalyptic number.

It is an amenable number.

212620933 is a deficient number, since it is larger than the sum of its proper divisors (32123707).

212620933 is a wasteful number, since it uses less digits than its factorization.

212620933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218667.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 212620933 is about 14581.5271148121. The cubic root of 212620933 is about 596.8547756750.

The spelling of 212620933 in words is "two hundred twelve million, six hundred twenty thousand, nine hundred thirty-three".