85420358 has 4 divisors (see below), whose sum is σ = 128130540. Its totient is φ = 42710178.

The previous prime is 85420337. The next prime is 85420381. The reversal of 85420358 is 85302458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85302458 = 2 ⋅42651229.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 21355088 + ... + 21355091.

It is an arithmetic number, because the mean of its divisors is an integer number (32032635).

Almost surely, 2^85420358 is an apocalyptic number.

85420358 is a deficient number, since it is larger than the sum of its proper divisors (42710182).

85420358 is a wasteful number, since it uses less digits than its factorization.

85420358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42710181.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 85420358 is about 9242.3134549744. The cubic root of 85420358 is about 440.4065766714.

It can be divided in two parts, 854 and 20358, that added together give a palindrome (21212).

The spelling of 85420358 in words is "eighty-five million, four hundred twenty thousand, three hundred fifty-eight".