7528978 has 16 divisors (see below), whose sum is σ = 11952000. Its totient is φ = 3547152.

The previous prime is 7528973. The next prime is 7528979. The reversal of 7528978 is 8798257.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7528973) 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, 8668 + ... + 9496.

It is an arithmetic number, because the mean of its divisors is an integer number (747000).

Almost surely, 2^7528978 is an apocalyptic number.

7528978 is a deficient number, since it is larger than the sum of its proper divisors (4423022).

7528978 is a wasteful number, since it uses less digits than its factorization.

7528978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089.

The product of its digits is 282240, while the sum is 46.

The square root of 7528978 is about 2743.8983217313. The cubic root of 7528978 is about 195.9951581478.

It can be divided in two parts, 752 and 8978, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 7528978 in words is "seven million, five hundred twenty-eight thousand, nine hundred seventy-eight".