85286077 has 6 divisors (see below), whose sum is σ = 85654842. Its totient is φ = 84918672.

The previous prime is 85286051. The next prime is 85286081. The reversal of 85286077 is 77068258.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 443556 + 84842521 = 666^2 + 9211^2 .

It is a de Polignac number, because none of the positive numbers 2^k-85286077 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 (85286017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138823 + ... + 139435.

It is an arithmetic number, because the mean of its divisors is an integer number (14275807).

Almost surely, 2^85286077 is an apocalyptic number.

It is an amenable number.

85286077 is a deficient number, since it is larger than the sum of its proper divisors (368765).

85286077 is an frugal number, since it uses more digits than its factorization.

85286077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 85286077 is about 9235.0461287424. The cubic root of 85286077 is about 440.1756822551.

The spelling of 85286077 in words is "eighty-five million, two hundred eighty-six thousand, seventy-seven".