84745085 has 8 divisors (see below), whose sum is σ = 107676216. Its totient is φ = 63808000.

The previous prime is 84745081. The next prime is 84745097. The reversal of 84745085 is 58054748.

It can be written as a sum of positive squares in 4 ways, for example, as 17799961 + 66945124 = 4219^2 + 8182^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84745085 - 2² = 84745081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84745081) 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, 498416 + ... + 498585.

It is an arithmetic number, because the mean of its divisors is an integer number (13459527).

Almost surely, 2^84745085 is an apocalyptic number.

84745085 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84745085 is a deficient number, since it is larger than the sum of its proper divisors (22931131).

84745085 is a wasteful number, since it uses less digits than its factorization.

84745085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997023.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 84745085 is about 9205.7093697335. The cubic root of 84745085 is about 439.2429906862.

The spelling of 84745085 in words is "eighty-four million, seven hundred forty-five thousand, eighty-five".