85470617 has 4 divisors (see below), whose sum is σ = 85904676. Its totient is φ = 85036560.

The previous prime is 85470613. The next prime is 85470631. The reversal of 85470617 is 71607458.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39488656 + 45981961 = 6284^2 + 6781^2 .

It is a cyclic number.

It is not a de Polignac number, because 85470617 - 2² = 85470613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85470613) 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, 216734 + ... + 217127.

It is an arithmetic number, because the mean of its divisors is an integer number (21476169).

Almost surely, 2^85470617 is an apocalyptic number.

It is an amenable number.

85470617 is a deficient number, since it is larger than the sum of its proper divisors (434059).

85470617 is a wasteful number, since it uses less digits than its factorization.

85470617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434058.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 85470617 is about 9245.0320172512. The cubic root of 85470617 is about 440.4929341275.

The spelling of 85470617 in words is "eighty-five million, four hundred seventy thousand, six hundred seventeen".