84081825 has 36 divisors (see below), whose sum is σ = 153823488. Its totient is φ = 43884000.

The previous prime is 84081799. The next prime is 84081839. The reversal of 84081825 is 52818048.

It is not a de Polignac number, because 84081825 - 2⁶ = 84081761 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84081825.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6600 + ... + 14550.

Almost surely, 2^84081825 is an apocalyptic number.

It is an amenable number.

84081825 is a deficient number, since it is larger than the sum of its proper divisors (69741663).

84081825 is a wasteful number, since it uses less digits than its factorization.

84081825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014 (or 8006 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 84081825 is about 9169.6142230739. The cubic root of 84081825 is about 438.0940718690.

The spelling of 84081825 in words is "eighty-four million, eighty-one thousand, eight hundred twenty-five".