84168425 has 24 divisors (see below), whose sum is σ = 114284352. Its totient is φ = 60984000.

The previous prime is 84168421. The next prime is 84168433. The reversal of 84168425 is 52486148.

It is a happy number.

It is not a de Polignac number, because 84168425 - 2² = 84168421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84168421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115412 + ... + 116138.

It is an arithmetic number, because the mean of its divisors is an integer number (4761848).

Almost surely, 2^84168425 is an apocalyptic number.

It is an amenable number.

84168425 is a deficient number, since it is larger than the sum of its proper divisors (30115927).

84168425 is a wasteful number, since it uses less digits than its factorization.

84168425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1164 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 84168425 is about 9174.3351257734. The cubic root of 84168425 is about 438.2444251271.

The spelling of 84168425 in words is "eighty-four million, one hundred sixty-eight thousand, four hundred twenty-five".