212989093 has 8 divisors (see below), whose sum is σ = 214884000. Its totient is φ = 211100688.

The previous prime is 212989081. The next prime is 212989099. The reversal of 212989093 is 390989212.

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-212989093 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 (212989099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82618 + ... + 85156.

It is an arithmetic number, because the mean of its divisors is an integer number (26860500).

Almost surely, 2^212989093 is an apocalyptic number.

It is an amenable number.

212989093 is a deficient number, since it is larger than the sum of its proper divisors (1894907).

212989093 is a wasteful number, since it uses less digits than its factorization.

212989093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 212989093 is about 14594.1458468798. The cubic root of 212989093 is about 597.1990681288.

The spelling of 212989093 in words is "two hundred twelve million, nine hundred eighty-nine thousand, ninety-three".