85918478 has 16 divisors (see below), whose sum is σ = 135819936. Its totient is φ = 40682400.

The previous prime is 85918463. The next prime is 85918489. The reversal of 85918478 is 87481958.

It is a congruent number.

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, 4601 + ... + 13892.

It is an arithmetic number, because the mean of its divisors is an integer number (8488746).

Almost surely, 2^85918478 is an apocalyptic number.

85918478 is a deficient number, since it is larger than the sum of its proper divisors (49901458).

85918478 is a wasteful number, since it uses less digits than its factorization.

85918478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18619.

The product of its digits is 645120, while the sum is 50.

The square root of 85918478 is about 9269.2220817067. Note that the first 3 decimals coincide. The cubic root of 85918478 is about 441.2609798593.

The spelling of 85918478 in words is "eighty-five million, nine hundred eighteen thousand, four hundred seventy-eight".