85780282 has 48 divisors (see below), whose sum is σ = 157745448. Its totient is φ = 34836480.

The previous prime is 85780267. The next prime is 85780309. The reversal of 85780282 is 28208758.

It can be written as a sum of positive squares in 4 ways, for example, as 84989961 + 790321 = 9219^2 + 889^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148378 + ... + 148954.

Almost surely, 2^85780282 is an apocalyptic number.

85780282 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

85780282 is a deficient number, since it is larger than the sum of its proper divisors (71965166).

85780282 is a wasteful number, since it uses less digits than its factorization.

85780282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 85780282 is about 9261.7645187081. The cubic root of 85780282 is about 441.0242701013.

The spelling of 85780282 in words is "eighty-five million, seven hundred eighty thousand, two hundred eighty-two".