85208577 has 16 divisors (see below), whose sum is σ = 116484480. Its totient is φ = 55382912.

The previous prime is 85208561. The next prime is 85208579. The reversal of 85208577 is 77580258.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85208577 - 2⁴ = 85208561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85208579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24949 + ... + 28157.

It is an arithmetic number, because the mean of its divisors is an integer number (7280280).

Almost surely, 2^85208577 is an apocalyptic number.

It is an amenable number.

85208577 is a deficient number, since it is larger than the sum of its proper divisors (31275903).

85208577 is a wasteful number, since it uses less digits than its factorization.

85208577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 85208577 is about 9230.8492025382. The cubic root of 85208577 is about 440.0423117024.

The spelling of 85208577 in words is "eighty-five million, two hundred eight thousand, five hundred seventy-seven".