85986218 has 16 divisors (see below), whose sum is σ = 136270080. Its totient is φ = 40626096.

The previous prime is 85986209. The next prime is 85986227. The reversal of 85986218 is 81268958.

It is an interprime number because it is at equal distance from previous prime (85986209) and next prime (85986227).

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13046 + ... + 18497.

It is an arithmetic number, because the mean of its divisors is an integer number (8516880).

Almost surely, 2^85986218 is an apocalyptic number.

85986218 is a deficient number, since it is larger than the sum of its proper divisors (50283862).

85986218 is a wasteful number, since it uses less digits than its factorization.

85986218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31621.

The product of its digits is 276480, while the sum is 47.

The square root of 85986218 is about 9272.8753900826. The cubic root of 85986218 is about 441.3769159859.

The spelling of 85986218 in words is "eighty-five million, nine hundred eighty-six thousand, two hundred eighteen".