84408525 has 18 divisors (see below), whose sum is σ = 151185450. Its totient is φ = 45017760.

The previous prime is 84408523. The next prime is 84408557. The reversal of 84408525 is 52580448.

It can be written as a sum of positive squares in 3 ways, for example, as 1179396 + 83229129 = 1086^2 + 9123^2 .

It is not a de Polignac number, because 84408525 - 2¹ = 84408523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84408525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84408521) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 187350 + ... + 187799.

Almost surely, 2^84408525 is an apocalyptic number.

It is an amenable number.

84408525 is a deficient number, since it is larger than the sum of its proper divisors (66776925).

84408525 is a wasteful number, since it uses less digits than its factorization.

84408525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375165 (or 375157 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 84408525 is about 9187.4112240609. The cubic root of 84408525 is about 438.6607435256.

The spelling of 84408525 in words is "eighty-four million, four hundred eight thousand, five hundred twenty-five".