7528385 has 8 divisors (see below), whose sum is σ = 9204840. Its totient is φ = 5908864.

The previous prime is 7528363. The next prime is 7528387. The reversal of 7528385 is 5838257.

It can be written as a sum of positive squares in 4 ways, for example, as 1787569 + 5740816 = 1337^2 + 2396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7528385 - 2¹⁶ = 7462849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7528387) 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, 13940 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (1150605).

Almost surely, 2^7528385 is an apocalyptic number.

It is an amenable number.

7528385 is a deficient number, since it is larger than the sum of its proper divisors (1676455).

7528385 is a wasteful number, since it uses less digits than its factorization.

7528385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28467.

The product of its digits is 67200, while the sum is 38.

The square root of 7528385 is about 2743.7902616636. The cubic root of 7528385 is about 195.9900123329.

The spelling of 7528385 in words is "seven million, five hundred twenty-eight thousand, three hundred eighty-five".