84625605 has 24 divisors (see below), whose sum is σ = 149093880. Its totient is φ = 44392320.

The previous prime is 84625603. The next prime is 84625627. The reversal of 84625605 is 50652648.

84625605 is a `hidden beast` number, since 8 + 46 + 2 + 5 + 605 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4809249 + 79816356 = 2193^2 + 8934^2 .

It is not a de Polignac number, because 84625605 - 2¹ = 84625603 is a prime.

It is a super-2 number, since 2×84625605² = 14322986043232050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84625605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84625603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12670 + ... + 18159.

It is an arithmetic number, because the mean of its divisors is an integer number (6212245).

Almost surely, 2^84625605 is an apocalyptic number.

It is an amenable number.

84625605 is a deficient number, since it is larger than the sum of its proper divisors (64468275).

84625605 is a wasteful number, since it uses less digits than its factorization.

84625605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30901 (or 30898 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 84625605 is about 9199.2176297770. The cubic root of 84625605 is about 439.0364676544.

The spelling of 84625605 in words is "eighty-four million, six hundred twenty-five thousand, six hundred five".