84061918 has 16 divisors (see below), whose sum is σ = 132531840. Its totient is φ = 39911256.

The previous prime is 84061907. The next prime is 84061919. The reversal of 84061918 is 81916048.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84061919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180 + ... + 12967.

It is an arithmetic number, because the mean of its divisors is an integer number (8283240).

Almost surely, 2^84061918 is an apocalyptic number.

84061918 is a deficient number, since it is larger than the sum of its proper divisors (48469922).

84061918 is a wasteful number, since it uses less digits than its factorization.

84061918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13311.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 84061918 is about 9168.5286714936. The cubic root of 84061918 is about 438.0594951257.

The spelling of 84061918 in words is "eighty-four million, sixty-one thousand, nine hundred eighteen".