85393417 has 4 divisors (see below), whose sum is σ = 85532436. Its totient is φ = 85254400.

The previous prime is 85393381. The next prime is 85393421. The reversal of 85393417 is 71439358.

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 16353936 + 69039481 = 4044^2 + 8309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85393417 is a prime.

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 85393417.

It is not an unprimeable number, because it can be changed into a prime (85393117) 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, 68584 + ... + 69817.

It is an arithmetic number, because the mean of its divisors is an integer number (21383109).

Almost surely, 2^85393417 is an apocalyptic number.

It is an amenable number.

85393417 is a deficient number, since it is larger than the sum of its proper divisors (139019).

85393417 is a wasteful number, since it uses less digits than its factorization.

85393417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139018.

The product of its digits is 90720, while the sum is 40.

The square root of 85393417 is about 9240.8558586313. The cubic root of 85393417 is about 440.3602713898.

The spelling of 85393417 in words is "eighty-five million, three hundred ninety-three thousand, four hundred seventeen".