85271770 has 8 divisors (see below), whose sum is σ = 153489204. Its totient is φ = 34108704.

The previous prime is 85271761. The next prime is 85271773. The reversal of 85271770 is 7717258.

It can be written as a sum of positive squares in 2 ways, for example, as 71927361 + 13344409 = 8481^2 + 3653^2 .

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

It is not an unprimeable number, because it can be changed into a prime (85271773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4263579 + ... + 4263598.

Almost surely, 2^85271770 is an apocalyptic number.

85271770 is a deficient number, since it is larger than the sum of its proper divisors (68217434).

85271770 is a wasteful number, since it uses less digits than its factorization.

85271770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8527184.

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 85271770 is about 9234.2714926517. The cubic root of 85271770 is about 440.1510672734.

The spelling of 85271770 in words is "eighty-five million, two hundred seventy-one thousand, seven hundred seventy".