85471090 has 8 divisors (see below), whose sum is σ = 153847980. Its totient is φ = 34188432.

The previous prime is 85471069. The next prime is 85471103. The reversal of 85471090 is 9017458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78517321 + 6953769 = 8861^2 + 2637^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4273545 + ... + 4273564.

Almost surely, 2^85471090 is an apocalyptic number.

85471090 is a deficient number, since it is larger than the sum of its proper divisors (68376890).

85471090 is a wasteful number, since it uses less digits than its factorization.

85471090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547116.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 85471090 is about 9245.0575985226. The cubic root of 85471090 is about 440.4937466983.

The spelling of 85471090 in words is "eighty-five million, four hundred seventy-one thousand, ninety".