7288978 has 16 divisors (see below), whose sum is σ = 11208960. Its totient is φ = 3553776.

The previous prime is 7288969. The next prime is 7288979. The reversal of 7288978 is 8798827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7288979) 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, 26176 + ... + 26452.

It is an arithmetic number, because the mean of its divisors is an integer number (700560).

Almost surely, 2^7288978 is an apocalyptic number.

7288978 is a deficient number, since it is larger than the sum of its proper divisors (3919982).

7288978 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (7288977) it forms an eRAP, since the sums of their prime factors are consecutive (560 and 561).

7288978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its digits is 451584, while the sum is 49.

The square root of 7288978 is about 2699.8107341071. The cubic root of 7288978 is about 193.8900606413.

The spelling of 7288978 in words is "seven million, two hundred eighty-eight thousand, nine hundred seventy-eight".