7389216 has 36 divisors (see below), whose sum is σ = 21013902. Its totient is φ = 2462976.

The previous prime is 7389209. The next prime is 7389223. The reversal of 7389216 is 6129837.

It is an interprime number because it is at equal distance from previous prime (7389209) and next prime (7389223).

It can be written as a sum of positive squares in only one way, i.e., 6780816 + 608400 = 2604^2 + 780^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12541 + ... + 13116.

Almost surely, 2^7389216 is an apocalyptic number.

It is an amenable number.

7389216 is an abundant number, since it is smaller than the sum of its proper divisors (13624686).

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

7389216 is a wasteful number, since it uses less digits than its factorization.

7389216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25673 (or 25662 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 7389216 is about 2718.3112404579. The cubic root of 7389216 is about 194.7748090775.

The spelling of 7389216 in words is "seven million, three hundred eighty-nine thousand, two hundred sixteen".