85420282 has 4 divisors (see below), whose sum is σ = 128130426. Its totient is φ = 42710140.

The previous prime is 85420277. The next prime is 85420289. The reversal of 85420282 is 28202458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28202458 = 2 ⋅14101229.

It can be written as a sum of positive squares in only one way, i.e., 79014321 + 6405961 = 8889^2 + 2531^2 .

It is not an unprimeable number, because it can be changed into a prime (85420289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21355069 + ... + 21355072.

Almost surely, 2^85420282 is an apocalyptic number.

85420282 is a deficient number, since it is larger than the sum of its proper divisors (42710144).

85420282 is a wasteful number, since it uses less digits than its factorization.

85420282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42710143.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 85420282 is about 9242.3093434487. The cubic root of 85420282 is about 440.4064460588.

The spelling of 85420282 in words is "eighty-five million, four hundred twenty thousand, two hundred eighty-two".