85729201 has 4 divisors (see below), whose sum is σ = 85959412. Its totient is φ = 85498992.

The previous prime is 85729169. The next prime is 85729207. The reversal of 85729201 is 10292758.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38738176 + 46991025 = 6224^2 + 6855^2 .

It is a cyclic number.

It is not a de Polignac number, because 85729201 - 2⁵ = 85729169 is a prime.

It is a super-3 number, since 3×85729201³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85729207) 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, 114546 + ... + 115291.

It is an arithmetic number, because the mean of its divisors is an integer number (21489853).

Almost surely, 2^85729201 is an apocalyptic number.

It is an amenable number.

85729201 is a deficient number, since it is larger than the sum of its proper divisors (230211).

85729201 is a wasteful number, since it uses less digits than its factorization.

85729201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230210.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 85729201 is about 9259.0064801792. The cubic root of 85729201 is about 440.9367113858.

The spelling of 85729201 in words is "eighty-five million, seven hundred twenty-nine thousand, two hundred one".