7212989 has 16 divisors (see below), whose sum is σ = 8753280. Its totient is φ = 5806080.

The previous prime is 7212983. The next prime is 7213009. The reversal of 7212989 is 9892127.

It is not a de Polignac number, because 7212989 - 2⁴ = 7212973 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25529 + ... + 25809.

It is an arithmetic number, because the mean of its divisors is an integer number (547080).

Almost surely, 2^7212989 is an apocalyptic number.

It is an amenable number.

7212989 is a deficient number, since it is larger than the sum of its proper divisors (1540291).

7212989 is a wasteful number, since it uses less digits than its factorization.

7212989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its digits is 18144, while the sum is 38.

The square root of 7212989 is about 2685.7008396320. The cubic root of 7212989 is about 193.2139251423.

The spelling of 7212989 in words is "seven million, two hundred twelve thousand, nine hundred eighty-nine".