85999097 has 4 divisors (see below), whose sum is σ = 87999120. Its totient is φ = 83999076.

The previous prime is 85999091. The next prime is 85999171. The reversal of 85999097 is 79099958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85999097 - 2⁶ = 85999033 is a prime.

It is a super-3 number, since 3×85999097³ (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 (85999091) 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, 999947 + ... + 1000032.

It is an arithmetic number, because the mean of its divisors is an integer number (21999780).

Almost surely, 2^85999097 is an apocalyptic number.

It is an amenable number.

85999097 is a deficient number, since it is larger than the sum of its proper divisors (2000023).

85999097 is a wasteful number, since it uses less digits than its factorization.

85999097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000022.

The product of its (nonzero) digits is 1837080, while the sum is 56.

The square root of 85999097 is about 9273.5698088708. The cubic root of 85999097 is about 441.3989513371.

The spelling of 85999097 in words is "eighty-five million, nine hundred ninety-nine thousand, ninety-seven".