85873978 has 8 divisors (see below), whose sum is σ = 129201120. Its totient is φ = 42806940.

The previous prime is 85873961. The next prime is 85874051. The reversal of 85873978 is 87937858.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64198 + ... + 65521.

It is an arithmetic number, because the mean of its divisors is an integer number (16150140).

Almost surely, 2^85873978 is an apocalyptic number.

85873978 is a deficient number, since it is larger than the sum of its proper divisors (43327142).

85873978 is a wasteful number, since it uses less digits than its factorization.

85873978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130052.

The product of its digits is 3386880, while the sum is 55.

The square root of 85873978 is about 9266.8213536250. The cubic root of 85873978 is about 441.1847855214.

The spelling of 85873978 in words is "eighty-five million, eight hundred seventy-three thousand, nine hundred seventy-eight".