69528490 has 8 divisors (see below), whose sum is σ = 125151300. Its totient is φ = 27811392.

The previous prime is 69528469. The next prime is 69528499. The reversal of 69528490 is 9482596.

It can be written as a sum of positive squares in 2 ways, for example, as 66406201 + 3122289 = 8149^2 + 1767^2 .

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

It is not an unprimeable number, because it can be changed into a prime (69528499) 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 3 ways as a sum of consecutive naturals, for example, 3476415 + ... + 3476434.

Almost surely, 2^69528490 is an apocalyptic number.

69528490 is a deficient number, since it is larger than the sum of its proper divisors (55622810).

69528490 is a wasteful number, since it uses less digits than its factorization.

69528490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952856.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 69528490 is about 8338.3745418397. The cubic root of 69528490 is about 411.2010982032.

The spelling of 69528490 in words is "sixty-nine million, five hundred twenty-eight thousand, four hundred ninety".