85866190 has 8 divisors (see below), whose sum is σ = 154559160. Its totient is φ = 34346472.

The previous prime is 85866173. The next prime is 85866197. The reversal of 85866190 is 9166858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85866190² = 14746005170232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85866197) 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, 4293300 + ... + 4293319.

It is an arithmetic number, because the mean of its divisors is an integer number (19319895).

Almost surely, 2^85866190 is an apocalyptic number.

85866190 is a deficient number, since it is larger than the sum of its proper divisors (68692970).

85866190 is a wasteful number, since it uses less digits than its factorization.

85866190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586626.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 85866190 is about 9266.4011352844. The cubic root of 85866190 is about 441.1714479498.

The spelling of 85866190 in words is "eighty-five million, eight hundred sixty-six thousand, one hundred ninety".