85416481 has 4 divisors (see below), whose sum is σ = 85536000. Its totient is φ = 85296964.

The previous prime is 85416467. The next prime is 85416493. The reversal of 85416481 is 18461458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85416481 is a prime.

It is a super-2 number, since 2×85416481² = 14591950452846722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85416481.

It is not an unprimeable number, because it can be changed into a prime (85416421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58681 + ... + 60118.

It is an arithmetic number, because the mean of its divisors is an integer number (21384000).

Almost surely, 2^85416481 is an apocalyptic number.

It is an amenable number.

85416481 is a deficient number, since it is larger than the sum of its proper divisors (119519).

85416481 is a wasteful number, since it uses less digits than its factorization.

85416481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119518.

The product of its digits is 30720, while the sum is 37.

The square root of 85416481 is about 9242.1037107360. The cubic root of 85416481 is about 440.3999136144.

The spelling of 85416481 in words is "eighty-five million, four hundred sixteen thousand, four hundred eighty-one".