85073861 has 4 divisors (see below), whose sum is σ = 85223424. Its totient is φ = 84924300.

The previous prime is 85073843. The next prime is 85073869. The reversal of 85073861 is 16837058.

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 a de Polignac number, because none of the positive numbers 2^k-85073861 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 (85073869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73925 + ... + 75066.

It is an arithmetic number, because the mean of its divisors is an integer number (21305856).

Almost surely, 2^85073861 is an apocalyptic number.

It is an amenable number.

85073861 is a deficient number, since it is larger than the sum of its proper divisors (149563).

85073861 is a wasteful number, since it uses less digits than its factorization.

85073861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149562.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 85073861 is about 9223.5492626212. The cubic root of 85073861 is about 439.8102849477.

The spelling of 85073861 in words is "eighty-five million, seventy-three thousand, eight hundred sixty-one".