85199005 has 16 divisors (see below), whose sum is σ = 107278848. Its totient is φ = 64872000.

The previous prime is 85199003. The next prime is 85199027. The reversal of 85199005 is 50099158.

It is not a de Polignac number, because 85199005 - 2¹ = 85199003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85199003) 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, 4950 + ... + 13960.

It is an arithmetic number, because the mean of its divisors is an integer number (6704928).

Almost surely, 2^85199005 is an apocalyptic number.

It is an amenable number.

85199005 is a deficient number, since it is larger than the sum of its proper divisors (22079843).

85199005 is a wasteful number, since it uses less digits than its factorization.

85199005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9108.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 85199005 is about 9230.3307091350. The cubic root of 85199005 is about 440.0258335383.

It can be divided in two parts, 851 and 99005, that added together give a square (99856 = 316²).

The spelling of 85199005 in words is "eighty-five million, one hundred ninety-nine thousand, five".