85418078 has 4 divisors (see below), whose sum is σ = 128127120. Its totient is φ = 42709038.

The previous prime is 85418077. The next prime is 85418087. The reversal of 85418078 is 87081458.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85418071) 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 as a sum of consecutive naturals, namely, 21354518 + ... + 21354521.

It is an arithmetic number, because the mean of its divisors is an integer number (32031780).

Almost surely, 2^85418078 is an apocalyptic number.

85418078 is a deficient number, since it is larger than the sum of its proper divisors (42709042).

85418078 is a wasteful number, since it uses less digits than its factorization.

85418078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42709041.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 85418078 is about 9242.1901084105. The cubic root of 85418078 is about 440.4026582615.

The spelling of 85418078 in words is "eighty-five million, four hundred eighteen thousand, seventy-eight".