85016405 has 8 divisors (see below), whose sum is σ = 108020952. Its totient is φ = 64012288.

The previous prime is 85016401. The next prime is 85016413. The reversal of 85016405 is 50461058.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38217124 + 46799281 = 6182^2 + 6841^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 85016405 - 2² = 85016401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85016401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500012 + ... + 500181.

It is an arithmetic number, because the mean of its divisors is an integer number (13502619).

Almost surely, 2^85016405 is an apocalyptic number.

85016405 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85016405 is a deficient number, since it is larger than the sum of its proper divisors (23004547).

85016405 is a wasteful number, since it uses less digits than its factorization.

85016405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000215.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 85016405 is about 9220.4341004098. The cubic root of 85016405 is about 439.7112516672.

The spelling of 85016405 in words is "eighty-five million, sixteen thousand, four hundred five".