7214445 has 48 divisors (see below), whose sum is σ = 14701440. Its totient is φ = 3203712.

The previous prime is 7214437. The next prime is 7214447. The reversal of 7214445 is 5444127.

7214445 is a `hidden beast` number, since 7 + 214 + 445 = 666.

It is not a de Polignac number, because 7214445 - 2³ = 7214437 is a prime.

It is a d-powerful number, because it can be written as 7 + 2¹¹ + 1 + 4⁷ + 4¹⁰ + 4¹¹ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7214447) 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 47 ways as a sum of consecutive naturals, for example, 11346 + ... + 11964.

It is an arithmetic number, because the mean of its divisors is an integer number (306280).

Almost surely, 2^7214445 is an apocalyptic number.

It is an amenable number.

7214445 is an abundant number, since it is smaller than the sum of its proper divisors (7486995).

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

7214445 is a wasteful number, since it uses less digits than its factorization.

7214445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 7214445 is about 2685.9718911411. The cubic root of 7214445 is about 193.2269248639.

The spelling of 7214445 in words is "seven million, two hundred fourteen thousand, four hundred forty-five".